doc: create a file to doc git config

git.config.md

@@ -0,0 +1,10 @@
+git config --global init.defaultBranch main
+git config --global user.email "tiago@ti2.net.br"
+git config --global user.name "TiagoTi"
+
+https://git.ti2.net.br/tiago.cipriano/bookmarks-api.git
+
+git remote add origin git@github.com:TiagoTi/arduino-pomodoro.git
+
+git remote add origin https://git.ti2.net.br/tiago.cipriano/bookmarks-api.git
+git branch --set-upstream-to=origin/main main