Add Eero to the list of external projects.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144076 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/ReleaseNotes.html b/docs/ReleaseNotes.html
index e0641ff..cddf588 100644
--- a/docs/ReleaseNotes.html
+++ b/docs/ReleaseNotes.html
@@ -350,6 +350,22 @@
 </div>
   
 <!--=========================================================================-->
+<h3>Eero</h3>
+  
+<div>
+
+<p><a href="http://eerolanguage.org/">Eero</a> is a fully
+   header-and-binary-compatible dialect of Objective-C 2.0, implemented with a
+   patched version of the Clang/LLVM compiler. It features a streamlined syntax,
+   Python-like indentation, and new operators, for improved readability and
+   reduced code clutter. It also has new features such as limited forms of
+   operator overloading and namespaces, and strict (type-and-operator-safe)
+   enumerations. It is inspired by languages such as Smalltalk, Python, and
+   Ruby.</p>
+
+</div>
+
+<!--=========================================================================-->
 <h3>Glasgow Haskell Compiler (GHC)</h3>
   
 <div>