diff --git a/CHANGELOG-0.6.x.md b/CHANGELOG-0.6.x.md
index a117959415..e81caeb76f 100644
--- a/CHANGELOG-0.6.x.md
+++ b/CHANGELOG-0.6.x.md
@@ -175,7 +175,7 @@ Implemented features:
   - `sound`: Convert matrix of signal data to sound and play it.
   - `soundsc`: Scale data and play as sound.
   - `mu2lin`: Convert audio data from mu-law to linear signal.
-  - `lin2mu`: Convert audio data from linear singal to mu-law.
+  - `lin2mu`: Convert audio data from linear signal to mu-law.
 
 - elementary functions module:
 
diff --git a/modules/audio/help/en_US/xml/audiowrite.xml b/modules/audio/help/en_US/xml/audiowrite.xml
index 7f1474b9f8..0f81f67fb3 100644
--- a/modules/audio/help/en_US/xml/audiowrite.xml
+++ b/modules/audio/help/en_US/xml/audiowrite.xml
@@ -36,8 +36,8 @@
     </param_input>
     <description>
         <p>
-            <b>audiorwrite</b> writes an audio file.</p>
-            <p>More 26 files format supported. See <b
+            <b>audiowrite</b> writes an audio file.</p>
+            <p>More than 26 files format supported. See <b
       >audiosupportedformats</b> function to have all supported formats.</p>
         </description>
         <used_function />
diff --git a/modules/audio/help/en_US/xml/lin2mu.xml b/modules/audio/help/en_US/xml/lin2mu.xml
index aa79fa3ad2..f617f40fae 100644
--- a/modules/audio/help/en_US/xml/lin2mu.xml
+++ b/modules/audio/help/en_US/xml/lin2mu.xml
@@ -4,7 +4,7 @@
     <language>en_US</language>
     <keyword>lin2mu</keyword>
     <short_description
-  >Convert audio data from linear singal to mu-law.</short_description>
+  >Convert audio data from linear signal to mu-law.</short_description>
     <syntax>
         <syntax_item>mu = lin2mu(y)</syntax_item>
     </syntax>
diff --git a/modules/help_tools/help/en_US/xml/1_nelson_help_reference.xml b/modules/help_tools/help/en_US/xml/1_nelson_help_reference.xml
index 0a980b6597..fd6475e9e8 100644
--- a/modules/help_tools/help/en_US/xml/1_nelson_help_reference.xml
+++ b/modules/help_tools/help/en_US/xml/1_nelson_help_reference.xml
@@ -89,11 +89,14 @@
       <li><b>`&lt;b&gt;`</b> — bold text.</li>
       <li><b>`&lt;i&gt;`</b> — italic text.</li>
       <li><b>`&lt;code&gt;`</b> — inline code rendering.</li>
-      <li><b>`&lt;a href="..."&gt;`</b> — external links (rendered as HTML anchors).</li>
-      <li><b>`&lt;link linkend="..."&gt;`</b> — internal cross reference. If linkend contains a module in braces <code
+      <li><b
+        >`&lt;a href="..."&gt;`</b> — external links (rendered as HTML anchors).</li>
+      <li><b
+        >`&lt;link linkend="..."&gt;`</b> — internal cross reference. If linkend contains a module in braces <code
         >{module}name</code> it becomes <code
         >../module/name.html</code>, otherwise <code>name.html</code>.</li>
-      <li><b>`&lt;latex&gt;`</b> — math expressions; rendered as MathJax display math by the XSLT template (wrapped with <code
+      <li><b
+        >`&lt;latex&gt;`</b> — math expressions; rendered as MathJax display math by the XSLT template (wrapped with <code
         >`$$...$$`</code>).</li>
       <li><b>`&lt;img src="..."/&gt;`</b> — images. XSLT calls <code
         >ext:copy_img(@src)</code>; SVGs are rendered with a large fixed frame and other formats are responsive.</li>
@@ -101,11 +104,13 @@
 
     <p>Block elements:</p>
     <ul>
-      <li><code>`&lt;ul&gt;`</code> and <code>`&lt;ol&gt;`</code> — lists. Use <code
+      <li><code>`&lt;ul&gt;`</code> and <code
+        >`&lt;ol&gt;`</code> — lists. Use <code
         >`&lt;li&gt;`</code> with nested inline/block markup as needed.</li>
       <li><code>`&lt;table&gt;`</code> — use <code>`&lt;thead&gt;`</code>, <code
         >`&lt;tbody&gt;`</code>, <code>`&lt;tr&gt;`</code>, <code
-        >`&lt;th&gt;`</code> and <code>`&lt;td&gt;`</code>. The XSD allows common attributes <code
+        >`&lt;th&gt;`</code> and <code
+        >`&lt;td&gt;`</code>. The XSD allows common attributes <code
         >border</code>, <code>cellpadding</code> and <code
         >cellspacing</code>.</li>
     </ul>
diff --git a/modules/help_tools/help/fr_FR/xml/1_nelson_help_reference.xml b/modules/help_tools/help/fr_FR/xml/1_nelson_help_reference.xml
index 620c16afdb..0243d2d8d5 100644
--- a/modules/help_tools/help/fr_FR/xml/1_nelson_help_reference.xml
+++ b/modules/help_tools/help/fr_FR/xml/1_nelson_help_reference.xml
@@ -83,7 +83,8 @@
       >`&lt;table&gt;`</code>), des balisages en ligne (<code
       >`&lt;b&gt;`</code>, <code>`&lt;i&gt;`</code>, <code
       >`&lt;code&gt;`</code>), des images (<code
-      >`&lt;img src="..."/&gt;`</code>) et LaTeX (<code>`&lt;latex&gt;`</code>).</p>
+      >`&lt;img src="..."/&gt;`</code>) et LaTeX (<code
+      >`&lt;latex&gt;`</code>).</p>
 
     <p>Les éléments en ligne et leur rendu XSLT :</p>
     <ul>
diff --git a/modules/help_tools/resources/nelson_html.xslt b/modules/help_tools/resources/nelson_html.xslt
index 8871d14581..e8b63b0220 100644
--- a/modules/help_tools/resources/nelson_html.xslt
+++ b/modules/help_tools/resources/nelson_html.xslt
@@ -76,20 +76,21 @@
             </a>
             <xsl:apply-templates select="xmldoc"/>
 
-            <!-- Author section always LAST -->
+            <!-- Author section: emit as HTML comment (keeps info in source but not visible) -->
             <xsl:if test="xmldoc/authors/author_item">
-                <div class="section" style="margin-top:30px;">
-                    <div class="section-title"><span class="syntax-icon">👤</span> <xsl:choose>
+                <xsl:comment>
+                    <xsl:choose>
                         <xsl:when test="xmldoc/language = 'fr_FR'">Auteur</xsl:when>
                         <xsl:otherwise>Author</xsl:otherwise>
-                    </xsl:choose><xsl:if test="count(xmldoc/authors/author_item) &gt; 1">s</xsl:if></div>
-                    <div>
-                        <xsl:for-each select="xmldoc/authors/author_item">
-                            <xsl:value-of select="."/>
-                            <xsl:if test="position() != last()">, </xsl:if>
-                        </xsl:for-each>
-                    </div>
-                </div>
+                    </xsl:choose>
+                    <xsl:text>: </xsl:text>
+                    <xsl:for-each select="xmldoc/authors/author_item">
+                        <xsl:value-of select="."/>
+                        <xsl:if test="position() != last()">
+                            <xsl:text>, </xsl:text>
+                        </xsl:if>
+                    </xsl:for-each>
+                </xsl:comment>
             </xsl:if>
 
             <!-- GitHub Edit Button: placed as the last element on the page -->
diff --git a/modules/help_tools/resources/nelson_markdown.xslt b/modules/help_tools/resources/nelson_markdown.xslt
index da1291bda8..b59cdb5d8b 100644
--- a/modules/help_tools/resources/nelson_markdown.xslt
+++ b/modules/help_tools/resources/nelson_markdown.xslt
@@ -243,13 +243,20 @@
     </xsl:for-each>
     </xsl:if>
 
-    <!-- Only show author section if there are authors -->
+    <!-- Only show author section if there are authors
+         -> Emit authors inside an HTML comment so they appear in the generated file
+            but are not rendered in the Markdown output.
+         -> Keep localization by using $author-text.
+    -->
     <xsl:if test="authors/author_item">
-    <xsl:text>&#10;## </xsl:text><xsl:value-of select="$author-text"/><xsl:text>&#10;&#10;</xsl:text>
-    <xsl:for-each select="authors/author_item">
-    <xsl:value-of select="."/>
-    <xsl:text>&#10;</xsl:text>
-    </xsl:for-each>
+      <xsl:text>&#10;&lt;!--&#10;## </xsl:text><xsl:value-of select="$author-text"/><xsl:text>&#10;&#10;</xsl:text>
+      <xsl:for-each select="authors/author_item">
+        <xsl:value-of select="."/>
+        <xsl:if test="position() != last()">
+          <xsl:text>&#10;</xsl:text>
+        </xsl:if>
+      </xsl:for-each>
+      <xsl:text>&#10;--&gt;&#10;</xsl:text>
     </xsl:if>
   </xsl:template>
 
diff --git a/modules/special_functions/help/fr_FR/xml/betainc.xml b/modules/special_functions/help/fr_FR/xml/betainc.xml
index fee193e142..e94e1dd8e0 100644
--- a/modules/special_functions/help/fr_FR/xml/betainc.xml
+++ b/modules/special_functions/help/fr_FR/xml/betainc.xml
@@ -39,9 +39,20 @@
     </param_output>
     <description>
         <p>
-            <b>betainc</b> calcule la fonction bêta incomplète.</p>
-            <p
+            <b>betainc</b> calcule la fonction bêta incomplète (régularisée).
+        </p>
+        <p>La fonction bêta incomplète est définie comme suit :</p>
+        <latex
+    >I_x(a,b) = \frac{B(x; a,b)}{B(a,b)} = \frac{1}{B(a,b)} \int_0^x t^{a-1} (1-t)^{b-1} \, dt</latex>
+        <p>où</p>
+        <latex>B(a,b) = \int_0^1 t^{a-1} (1-t)^{b-1} \, dt</latex>
+        <p>est la fonction bêta complète, et :</p>
+        <latex>B(a,b) = \frac{\Gamma(a)\Gamma(b)}{\Gamma(a+b)}</latex>
+        <p>La fonction est normalisée de sorte que</p>
+        <latex>I_1(a,b) = 1</latex>.
+        <p
     >Tous les tableaux doivent avoir la même taille ou n'importe lequel d'entre eux peut être scalaire.</p>
+
         </description>
         <used_function />
         <bibliography />