fix typos and some serious bugs in feature handling (but not for
cases that are currently exercised).  Thanks to Frits van Bommel for
the great review!

llvm-svn: 117840
diff --git a/llvm/docs/CodeGenerator.html b/llvm/docs/CodeGenerator.html
index 60d54e5..0a77617 100644
--- a/llvm/docs/CodeGenerator.html
+++ b/llvm/docs/CodeGenerator.html
@@ -1909,7 +1909,7 @@
 
 <div class="doc_text">
 
-<p>The first phase of alias processing is simple instruction mneomonic
+<p>The first phase of alias processing is simple instruction mnemonic
 remapping for classes of instructions which are allowed with two different
 mnemonics.  This phase is a simple and unconditionally remapping from one input
 mnemonic to one output mnemonic.  It isn't possible for this form of alias to