[ObjC] Add ability to introspect list of enum values (#4678)
Added new API to GPBEnumDescriptor to enable introspection of enum values.
Refactored implementation so that this contains a minimum of added code.
Clarified comments regarding behavior in the presence of the alias_allowed option.
Added unit tests for new functionality and for the alias case.
diff --git a/objectivec/README.md b/objectivec/README.md
index 469a61f..110e7f5 100644
--- a/objectivec/README.md
+++ b/objectivec/README.md
@@ -20,9 +20,10 @@
Installation
------------
-The full distribution pulled from github includes the sources for both the
-compiler (protoc) and the runtime (this directory). To build the compiler
-and run the runtime tests, you can use:
+The distribution pulled from github includes the sources for both the
+compiler (protoc) and the runtime (this directory). After cloning the distribution
+and needed submodules ([see the src directory's README](../src/README.md)),
+to build the compiler and run the runtime tests, you can use:
$ objectivec/DevTools/full_mac_build.sh