Adding "make tags"

Author: kigster

Makefile

@@ -21,6 +21,7 @@ SCREEN_WIDTH			:= 100
 MAKEFILE_PATH 			:= $(abspath $(lastword $(MAKEFILE_LIST)))
 CURRENT_DIR 			:= $(notdir $(patsubst %/,%,$(dir $(MAKEFILE_PATH))))
 PATH				:= $(shell echo "$(HOME)/.rbenv/shims:$(PATH)")
+RULES_VERSION			:= $(shell cat .rules_version)
 
 help:	   			## Prints help message auto-generated from the comments.
 				@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | sort | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'
@@ -43,3 +44,7 @@ update-readme:			## Generate the PDF version of the README
 				@open README.pdf
 
 
+tag:				## Tag this commit with .rules_version and push to remote
+				@git tag "v$(RULES_VERSION)" -f
+				@git push --tags -f
+