Add missing . (source) to virtualenv activate commands.
@@ -64,9 +64,9 @@ Only one can be active at a time, so perform the following steps one one at a ti
Activate whichever virtual environment you wish to use::
- pyglet-venv/py2/bin/activate
+ . pyglet-venv/py2/bin/activate
# or
- pyglet-venv/py3/bin/activate
+ . pyglet-venv/py3/bin/activate
You will see the name of the virtual environment at the start of the command prompt.
