Add troubleshooting section to package description

src/python/grpcio/README.rst

@@ -38,3 +38,17 @@ package named `python-dev`).
 
 Note that `$REPO_ROOT` can be assigned to whatever directory name floats your
 fancy.
+
+Troubleshooting
+~~~~~~~~~~~~~~~
+
+Help, I ...
+
+* **... see a** :code:`pkg_resources.VersionConflict` **when I try to install
+  grpc!**
+
+  This is likely because :code:`pip` doesn't own the offending dependency,
+  which in turn is likely because your operating system's package manager owns
+  it. You'll need to force the installation of the dependency:
+
+  :code:`pip install --ignore-installed $OFFENDING_DEPENDENCY`