Update README.md

Updated instructions for Windows users

Author: desmondwa

README.md

@@ -11,6 +11,8 @@ In this repository, you'll find a collection of [Jupyter notebooks](http://jupyt
 * [Planet Account](https://www.planet.com/explorer/?signup=1)
 * [Planet API Key](https://www.planet.com/account/)
 
+NOTE: After installing Docker, Windows users should install WSL2 Backend when prompted.
+
 ### Clone or update repo:
 
 If you've never cloned the Planet notebooks repo, run the following:
@@ -56,6 +58,8 @@ docker run -it --rm -p 8888:8888 -v $PWD:/home/jovyan/work -e PL_API_KEY='[YOUR-
 
 # If you get a permissions error running the above, you should add sudo to the front:
 # sudo docker run -it --rm -p 8888:8888 -v $PWD:/home/jovyan/work -e PL_API_KEY='[YOUR-API-KEY]' planet-notebooks
+# Windows users run: winpty docker run -it --rm -p 8888:8888 -v "/$PWD":/home/joyvan/work -e PL_API_KEY='[YOUR-API-KEY]' planet-notebooks
+
 ```
 
 This does several things:  
@@ -149,4 +153,4 @@ cd ..
 
 This will build and install the Docker image on your system, making it available to run. This may take some 
 time (from 10 minutes to an hour) depending on your network connection and how long Anaconda takes to configure
-its environment.
+its environment.