Merge pull request #1656 from pixelfed/trwnh-ignore-homeconfig

.gitignore parity with install guide in docs

.gitignore

@@ -15,5 +15,8 @@ yarn-error.log
 .DS_Store
 .bash_profile
 .bash_history
+.bashrc
 .gitconfig
-.composer/
+.git-credentials
+/.composer/
+/nginx.conf