add running method alternatives

Makefile

@@ -0,0 +1,13 @@
+usage: FORCE
+	exit 1
+
+FORCE:
+
+include config.env
+export $(shell sed 's/=.*//' config.env)
+
+start: FORCE
+	@echo " >> building..."
+	@mkdir -p log
+	@go build
+	@./grpcox

README.md

@@ -14,6 +14,14 @@ from terminal, move to grpcox directory, then run command
 ```shell
 docker-compose up
 ```
+if you're using docker and want to connect gRPC on your local machine, then use
+<br/>`host.docker.internal:<your gRPC port>` instead of `localhost`
+
+### Golang
+if you have golang installed on your local machine, just run command
+```shell
+make start
+```
 
 configure app preferences by editing `config.env` file