Fixing whitespace, layout, wording, and typo.

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@5487 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

NEWS

 2015.12.05 - GNU nano 2.5.0 "Karma", the first release of the 2.5 series,
 		is now available. Please note that as of this release,
 		there will no longer be separate stable and unstable
-                branches. The development team will prioritize bug fixes as
-		needed, and make new releases in proportion to the
+		branches. The development team will prioritize bug fixes
+		as needed, and make new releases in proportion to the
 		severity of the bugs which are fixed.
-			This release includes many of the fixes now in
-		2.4.3, as well as color synax highlighting improvements,
+			This release includes all of the fixes now in
+		2.4.3, as well as color syntax highlighting improvements,
 		undo fixes, and many more improvements!  Thank you for
 		using nano!