Update documentation for protobuf_distutils Python package.
This updates README.md to use an example with pip instead of setup.py.
The README.md is then used as the long_description argument to setup(),
so that the doc shows up on pypi.
diff --git a/python/protobuf_distutils/README.md b/python/protobuf_distutils/README.md
index f3f2009..2989b2a 100644
--- a/python/protobuf_distutils/README.md
+++ b/python/protobuf_distutils/README.md
@@ -10,7 +10,7 @@
```shell
$ python setup.py build
-$ python setup.py install
+$ python -m pip install .
```
(If you want to test changes to the extension, you can use `python setup.py
@@ -50,7 +50,7 @@
```shell
$ python setup.py generate_py_protobufs
$ python setup.py build
-$ python setup.py install
+$ python -m pip install .
```
## Options
