Fix linear_extrude synopsis to match implementation. See #6742.

Author: jordanbrown0

cheatsheet/snapshot.html

@@ -135,7 +135,7 @@ <h2>3D</h2>
         <code><a href="https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Primitive_Solids#cylinder">cylinder</a>(h,r1|d1,r2|d2,center)</code>
         <code><a href="https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Primitive_Solids#polyhedron">polyhedron</a>(points, faces, convexity)</code>
         <code><a href="https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Importing_Geometry#import">import</a>("&hellip;.<span class="tooltip">ext<span class="tooltiptext">formats: STL|OFF|AMF|3MF</span></span>", center, convexity)</code>
-        <code><a href="https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Using_the_2D_Subsystem#linear_extrude">linear_extrude</a>(height,v,center,convexity,twist,slices)</code>
+        <code><a href="https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Using_the_2D_Subsystem#linear_extrude">linear_extrude</a>(height,v,scale,center,twist,slices,segments,convexity)</code>
         <code><a href="https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Using_the_2D_Subsystem#rotate_extrude">rotate_extrude</a>(angle,start,convexity)</code>
         <code><a href="https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Other_Language_Features#surface">surface</a>(file = "&hellip;.<span class="tooltip">ext<span class="tooltiptext">formats: DAT|PNG</span></span>",center,convexity)</code>
       </article>