Add note for releasing

Makefile

@@ -80,10 +80,6 @@ build-reproducible: go.sum
 		--name latest-build likecoin/rbuilder:$(RBUILDER_IMAGE_TAG)
 	$(DOCKER) cp -a latest-build:/home/builder/artifacts/ $(CURDIR)/
 
-docker-login:
-	@echo "Logging in to docker hub"
-
-
 docker-build: go.sum
 	@echo "Building image for $(VERSION) using commit $(COMMIT)"
 	$(DOCKER) build \

RELEASE.md

@@ -0,0 +1,41 @@
+# Making release
+
+We have official release at Github release and docker image on Docker Hub.
+
+For release at Github release, it is done via Github Action automatically once
+developer create tag which match `v*.*.*` regex. For detail, one can check the
+`.github/workflows` folder.
+
+For docker images, we are not doing automatic build. When the dev team push
+releasing tag to Github, they will run the following.
+
+```sh
+make clean
+make docker-build
+make docker-push
+```
+
+Community should be able to find the release at
+https://hub.docker.com/r/likecoin/likecoin-chain
+
+## Building release locally
+
+If community member would like to build the binary locally, one can run
+
+```sh
+make clean build
+```
+
+You will find the platform specific binary at `build/liked`
+
+## Cross build
+
+In case you want to build a linux binary for your validator locally at your
+Macbook, we provide a cross platform binary build command as follow.
+
+```sh
+make clean build-reproducible
+```
+
+You will find few binary at `artifacts` folders. The binary name should be self
+explanatory for what platform it built form.