docs: change documentation

Signed-off-by: Ioan-Teodor Teugea <[email protected]>

README.md

@@ -7,17 +7,26 @@ It's the <https://unikraft.org> website for the latest version of
 ### Building and testing locally
 
 ```console
-yarn install
+npm install
 
-yarn run dev
+npm run dev
 ```
 
 ### Using Docker
 
+For development:
+
+```console
+docker build -t ghcr.io/unikraft/docs:dev --target dev .
+
+docker run -it --rm -v $(pwd):/docs -w /docs -p 3000:3000 ghcr.io/unikraft/docs:dev
+```
+
+For production:
+
 ```console
-docker build -t ghcr.io/unikraft/docs:base --target base .
+docker build -t ghcr.io/unikraft/docs:runner --target runner .
 
-docker run -it --rm -v $(pwd):/docs -w /docs -p 3000:3000 --entrypoint sh ghcr.io/unikraft/docs:base
+docker run -it --rm -p 3000:3000 ghcr.io/unikraft/docs:runner
 
-yarn run dev
 ```