Update page 'Home'

Home.md

@@ -10,6 +10,10 @@ Tools you should have ready:
 
 Windows users must use Powershell for command-line tasks.  MacOS users can use Terminal.app, but I recommend using Iterm2 instead purely for performance reasons.  Linux users are going to do whatever they want and that's fine.
 
+Troubleshooting:
+
+* `SSL certificate problem: unable to get local issuer certificate`: if you're on Windows, you're using curl for crypto instead of the built-in Windows SChannel crypto backend.  Type this to fix it: `git config --global http.sslbackend schannel`
+
 Day 1-2 reading: 
 
 Python language reference chapter 1: https://docs.python.org/3/reference/introduction.html