add docker-it in Makefile for debuging

  change `connect` to `docker-connect`
  add `docker-it` for attaching into container

Makefile

@@ -185,10 +185,15 @@ docker:
 	echo '.'
 	@echo "mysql test enviorment is ready!"
 
-.PHONY: connect
-connect:
+.PHONY: docker-connect
+docker-connect:
 	mysql -h 127.0.0.1 -u root -p1tIsB1g3rt -c
 
+# attach docker container with bash interactive mode
+.PHONY: docker-it
+docker-it:
+	docker exec -it soar-mysql /bin/bash
+
 .PHONY: main_test
 main_test: install
 	@echo "\033[92mrunning main_test\033[0m"