Merge pull request #563 from maxim-belkin/phony-targets

Makefile: fix up PHONY targets

Author: zkamvar

Makefile

@@ -31,15 +31,14 @@ ifeq (,$(PYTHON))
 endif
 
 
-# Controls
-.PHONY : commands clean files
-
 # Default target
 .DEFAULT_GOAL := commands
 
 ## I. Commands for both workshop and lesson websites
 ## =================================================
 
+.PHONY: site docker-serve repo-check clean clean-rmd
+
 ## * serve            : render website and run a local server
 serve : lesson-md
 	${JEKYLL} serve
@@ -160,6 +159,8 @@ lesson-fixme :
 ## IV. Auxililary (plumbing) commands
 ## =================================================
 
+.PHONY : commands
+
 ## * commands         : show all commands.
 commands :
 	@sed -n -e '/^##/s|^##[[:space:]]*||p' $(MAKEFILE_LIST)