Added more release notes.

--HG--
branch : SDL-1.2
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/branches/SDL-1.2%402483

docs.html

@@ -52,6 +52,9 @@ SDL 1.2.12 is a minor bug fix release.
 <P>
 	Unofficial support for the Nintendo DS platform has been added.
 </P>
+<P>
+	Reenabled MMX assembly for YUV overlay processing (GNU C Compiler only).
+</P>
 </BLOCKQUOTE>
 
 <H3> Unix Notes </H3>
@@ -81,6 +84,9 @@ SDL 1.2.12 is a minor bug fix release.
 <P>
 	Closed minor memory leak in XME code.
 </P>
+<P>
+	Fixed TEXTRELs in the library to resolve some PIC issues.
+</P>
 </BLOCKQUOTE>
 
 <H3> Windows Notes </H3>