more readme instructions

README.md

@@ -1,5 +1,6 @@
 ## How To Use
 
+* Make sure that you have Google Chrome installed and that it is up to date
 * Install python 3.x (tested on python 3.7) along with pip
 * `virtualenv -p $(which python3) ./venv`
 * `source venv/bin/activate`
@@ -8,3 +9,15 @@
 * Run `python3 deletefb.py` with your virtual environment activated.
 * Wait a long time
 * Say goodbye to your Facebook posts!
+
+## How To Install Python
+
+### MacOS
+See [this link](https://docs.python-guide.org/starting/install3/osx/) for
+instructions on installing with Brew.
+
+### Linux
+Use your native package manager
+
+### Windows
+See [this link](https://www.howtogeek.com/197947/how-to-install-python-on-windows/), but I make no guarantees that Selenium will actually work as I have not tested it.