Resolve "Add Automated Secrets Detection"

Closes #6 (closed)

Makefile

@@ -119,6 +119,14 @@ publish:
 		docker push $$image; \
 	done
 
+#Update README.md based on the template ._README.md
+TOOLSET := `echo "$(sort $(IMAGES_TO_PUBLISH))" | sed -e "s/ /\n - /g"))`
+README_HEAD = `cat ./_README.md | sed -e 's/%CONTAINERS_LIST%.*//g'`
+README_TAIL = `cat ./_README.md | sed -e '1,/%CONTAINERS_LIST%/d'`
+
+update_readme:
+	@echo "$(README_HEAD)\n - $(TOOLSET) $(README_TAIL)" | sed -e "s/%LAST_UPDATE%/\n_Last update: `date`_ \n/g" > README.md
+
 delete_dangling_images:
 	@echo "Removing dangling images"
 	@docker image prune -f
@@ -126,6 +134,7 @@ help:
 	@echo -e "make [all] \n\t # Creates all the images"
 	@echo -e "make <TARGET> \n\t # Creates an specific image"
 	@echo -e "make publish \n\t # Push the images to the UNL registry"
+	@echo -e "make update_readme \n\t Update the README.md file"
 #	@echo -e "make security \n\t # Send the images to Tenable. Use env variables TENABLE_IO_ACCESS_KEY and TENABLE_IO_SECRET_KEY"
 
 debug: