Generate linkable headers on alphabetical index

Author: WardBrian

gen_index.py

@@ -53,7 +53,7 @@ def write_index_page(index):
                 f.write(f"\n## {start.upper()}\n")
 
             escaped_name = name.replace("\\", "\\\\").replace("*", "\\*")
-            f.write(f"**{escaped_name}**:\n\n")
+            f.write(f"**{escaped_name}**<a id=\"{escaped_name}\" class=\"index-fn\"></a>:\n\n")
             for link, entry in sorted(links, key=lambda x: x[1].lower() + x[0]):
                 f.write(f" - [{entry}]({link})\n")
             f.write("\n\n")