create github actions code example

Example: github actions

################################
#### SIMPLE GIT AUTOMATION
################################
 
#execute command -> make gh msg="UpdateFiles"
 
GIT := git
ACTION = add.o commit.o push.o
 
gh: ${ACTION}
 
%.o:
    ${GIT} add .
ifdef msg
    ${GIT} commit -m ${msg}
endif
    ${GIT} push origin master