Update documentation and add deprecate attribute.

Change-Id: I4a73b739789cedeba1cf7e64be11aaaa09a9474b
diff --git a/README.html b/README.html
index 76e8dda..0b8b447 100644
--- a/README.html
+++ b/README.html
@@ -389,7 +389,8 @@
 <li><strong>bccReadBC</strong> - Set the source bitcode for compilation</li>
 <li><strong>bccReadModule</strong> - Set the llvm::Module for compilation</li>
 <li><strong>bccLinkBC</strong> - Set the library bitcode for linking</li>
-<li><strong>bccPrepareExecutable</strong> - Create the in-memory executable by either
+<li><strong>bccPrepareExecutable</strong> - <em>deprecated</em> - Use bccPrepareExecutableEx instead</li>
+<li><strong>bccPrepareExecutableEx</strong> - Create the in-memory executable by either
 just-in-time compilation or cache loading</li>
 <li><strong>bccGetFuncAddr</strong> - Get the entry address of the function</li>
 <li><strong>bccDisposeScript</strong> - Destroy bcc script and release the resources</li>