Update the 'new features' section


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11731 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/ReleaseNotes.html b/docs/ReleaseNotes.html
index c1eb2d9..35f5f78 100644
--- a/docs/ReleaseNotes.html
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@@ -87,7 +87,10 @@
 
 <ol>
 <li><a href="SourceLevelDebugging.html">A new LLVM source-level debugger has been started.</a></li>
-<li></li>
+<li>LLVM 1.2 encodes bytecode files for large programs in 10-30% less space.</li>
+<li>LLVM can now feed profile information back into optimizers for Profile Guided Optimization, and includes a simple basic block reordering pass.</li>
+<li>The LLVM JIT lazily initializes global variables, reducing startup time for programs with lots of globals (like C++ programs).</li>
+<li>The "tblgen" tool is <a href="TableGenFundamentals.html">now documented</a>.</li>
 </ol>