update gitignore

update gitignore to ignore .user files
Revert "update gitignore"

This reverts commit e39db0346f9c9f07a588e3fabf14c0f36e2f759a.
Revert "Revert "update gitignore""

This reverts commit 5aea4a52314e3d7ac550b9aa546f86c967bbcd8d.