Change some heading levels and add rename doc
Add error type to package version doc
Don't store invalid window dimensions on Windows
Use instance method
Handle invalid serialized window dimensions
:lipstick:
:lipstick: Add space before ->
Merge pull request #2895 from atom/dh-atom-io-package-rename-doc

Change some heading levels and add docs for package renames
Merge pull request #2889 from atom/ks-windows-dimensions-on-windows

Validate window dimensions
Install apm in 32-bit mode on Windows CI