Deemphasize Final Doom compatibility.

Given that there are a handful of animations that are fundamentally
incompatible between Doom II and Final Doom, and we have decided that
the correct thing to do is to prefer Doom II compatibility.
Additionally, there are only maybe a half dozen Final Doom mods around
and they pretty much all focus on being unofficial sequels.  We won’t
remove nor continue to improve the existing TNT/Plutonia-specific
resources, let’s just make it a little less of an issue when those
mods are broken (assuming it’s due to the Doom II conflicts...).

README.adoc

@@ -17,11 +17,11 @@ exclusively for multiplayer deathmatch:
 
 [horizontal]
 *Freedoom: Phase 1*:: Four chapters, nine levels each, totalling 36
-levels.  This game aims for compatibility with _The Ultimate Doom_,
-also known as plain _Doom_ or _Doom 1_.
+levels.  This game aims for compatibility with _The Ultimate Doom_
+mods, also known as plain _Doom_ or _Doom 1_.
 *Freedoom: Phase 2*:: 32 levels in one long chapter, featuring extra
 monsters and a double-barrelled shotgun.  This project aims for
-compatibility with _Doom II_ and _Final Doom_.
+compatibility with _Doom II_ mods.
 *FreeDM*:: A 32-level game designed for competitive deathmatch play.
 
 The engine uses a single file, such as +freedoom2.wad+, that contains

dist/freedoom2.appdata.xml

@@ -21,7 +21,7 @@
       (IWADs) for Doom-compatible engines.  With it comes the
       capability to also play the wide range of mods created for Doom
       by a vibrant community.  Freedoom: Phase 2 is fully compatible
-      with Doom II and Final Doom mods.
+      with Doom II mods.
     </p>
   </description>
   <screenshots>