Revert "Delete .gitignore"

This reverts commit 5cb6a62a2f6073c99ffd6bcd381533924cee9e09.
Revert "Delete .gitattributes"

This reverts commit 974a7f71a1b527c30374e660ebec85dc4643ae83.
git attr

git attr
GIT Attributes

GIT Attributes