textmetrics: correct links to docs, add intersection_for(i = object).

Author: jordanbrown0

cheatsheet/snapshot.html

@@ -186,6 +186,7 @@ <h2>Flow Control</h2>
         <code><a href="https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Conditional_and_Iterator_Functions#Intersection_For_Loop">intersection_for</a>(i = [<span>start</span>:<span>end</span>]) { &hellip; }</code>
         <code><a href="https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Conditional_and_Iterator_Functions#Intersection_For_Loop">intersection_for</a>(i = [<span>start</span>:<span>step</span>:<span>end</span>]) { &hellip; }</code>
         <code><a href="https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Conditional_and_Iterator_Functions#Intersection_For_Loop">intersection_for</a>(i = [&hellip;,&hellip;,&hellip;]) { &hellip; }</code>
+        <code><a href="https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Conditional_and_Iterator_Functions#Intersection_For_Loop">intersection_for</a>(i = object) { &hellip; }</code>
         <code><a href="https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Conditional_and_Iterator_Functions#If_Statement">if</a> (&hellip;) { &hellip; }</code>
         <code><a href="https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Conditional_and_Iterator_Functions#Let_Statement">let</a> (&hellip;) { &hellip; }</code>
       </article>
@@ -221,8 +222,8 @@ <h2>Functions</h2>
         <code><a href="https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Other_Language_Features#OpenSCAD_Version">version</a></code>
         <code><a href="https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Other_Language_Features#OpenSCAD_Version">version_num</a></code>
         <code><a href="https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Other_Language_Features#parent_module.28n.29_and_.24parent_modules">parent_module</a>(idx)</code>
-        <code><a href="https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Text#textmetrics">textmetrics</a>(t, size, font,<br/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;halign, valign, spacing,<br/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;direction, language, script)</code>
-        <code><a href="https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Text#fontmetrics">fontmetrics</a>(size, font)</code>
+        <code><a href="https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Text#textmetrics()">textmetrics</a>(t, size, font,<br/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;halign, valign, spacing,<br/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;direction, language, script)</code>
+        <code><a href="https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Text#fontmetrics()">fontmetrics</a>(size, font)</code>
       </article>
       <article>
         <h2>Mathematical</h2>