Update making-a-release

* geany.nsi and doc/geany.html are now generated;
* freecode.com is dead.

doc/making-a-release

@@ -8,11 +8,10 @@ and summarize the interesting ones.  Use `git log --author='name'`
 to filter commits by a particular developer name.
 
 Ensure version numbers are all updated in:
-	configure.ac geany.nsi geany_private.rc geany.exe.manifest
+	configure.ac geany_private.rc geany.exe.manifest
 	win32-config.h wscript doc/geany.txt
 Ensure release date is updated in:
 	NEWS doc/geany.txt doc/geany.1.in
-Regenerate doc/geany.html.
 Check GEANY_CODENAME is set in src/geany.h.
 
 Export the code into a new directory (i.e. not usual working copy).
@@ -41,7 +40,7 @@ current/hacking.html too.
 
 Announce on geany, devel, i18n mailing lists (check you're subscribed).
 Put a news item on SourceForge (https://sourceforge.net/news/?group_id=153444)
-and a new release on freecode.com (https://freecode.com/projects/geany).
+and a new release on GitHub (https://github.com/geany/geany/releases).
 
 For non-master releases, merge NEWS into master and any branch-only
 commits that need to merged.