Update readme

README.md

@@ -1,15 +1,33 @@
 # Image Cleanup Client
 
 ## General
+
 The image cleanup client is used to clean up Docker images in a Docker Registry when they are tagged using git SHA.
 
-This helps to save space because not anymore needed images are being removed from the registry.
+This helps to save space because obsolete images are being removed from the registry.
 
 The respective licenses for attribution are placed in `/attribution`.
 
 ## Development
-Build and run:
+
+### Requirements
+
+* go 1.13 (`sudo snap install --classic go`)
+* goreleaser (`sudo snap install --classic goreleaser`)
+
+### Build
+
+```
+goreleaser --snapshot --rm-dist
+```
+
+### Test
+
+```
+go test ./...
+```
+
+### Run
 ```
-go build -o client
-./client
+./dist/image-cleanup_linux_amd64/image-cleanup --help
 ```