add make shortcuts to readme

Author: sni

README.md

@@ -48,6 +48,12 @@ First build the Docker image which will contain N Nodejs - thats all this docume
 docker build . -t naemon/docs
 ```
 
+or simply run:
+
+```sh
+make docker-build
+```
+
 Now run the Docker container and navigate to `http://127.0.0.1:5173` in your browser.
 The container watches for file changes and will automatically regenerate the website if needed.
 
@@ -64,6 +70,12 @@ docker run \
   naemon/docs:latest
 ```
 
+or simply run:
+
+```sh
+make docker-server
+```
+
 ### Important for the Migration
 
 1. Remove all HTML from the Markdown files. Probably in 99% it's not required and can be done using Markdown.