- added instructions for setting up sc-docker in Windows PowerShell

.gitignore

@@ -49,3 +49,4 @@ scripts/py36to34.py
 
 # VSCode
 .vscode/
+docker/.Rhistory

docker/Setup in PowerShell -- instructions.md

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+How to set up ByteKeeper's sc-docker in Windows PowerShell. Step-by-step instructions:
+
+0) Download jre-8u192-windows-i586.tar.gz and move it to the `sc-docker-master\docker` folder
+https://www.oracle.com/technetwork/es/java/javase/downloads/jre8-downloads-2133155.html?printOnly=1
+Use of openjdk is not advised here as it is much slower.
+1) Open the file `sc-docker-master\docker\build_images.ps1` and do all commands listed there in PowerShell.
+You may want to run PowerShell in administrator mode.
+2) Do `pip install wheel`
+3) Do `py setup.py bdist_wheel` or `python3 setup.py bdist_wheel` depending on how your Python is setup.
+4) Do `pip3 install dist/scbw-1.0.4-py3-none-any.whl`
+5) When launching a game, append `--docker_image starcraft:game`
+An example command would look like this:
+`scbw.play --bots "Hao Pan" "Martin Rooijackers" --headless --timeout 630 --read_overwrite --game_speed 0 --map "sscai/(4)Fighting Spirit.scx" --docker_image starcraft:game`
+If you don't do this, the original image, `starcraft:game-1.0.4`, will be used.