[skip changelog] Clarify installation instructions for Windows#706

Merged

per1234 merged 2 commits intoarduino:masterfrom

per1234:clarify-installation-instructions

May 21, 2020

Commits on May 14, 2020

[skip changelog] Document the install script's compatibility with Windows
per1234
committed
[skip changelog] Make the PATH instructions more prominent in the installation docs
per1234
committed