[FEAT]: Improve documentation

[mbret]

Feature Description

• add a way to copy the lines of bash. eg: an icon to copy on the right/left corner
• add the github repo visible

Some issue encountered:

After running the getting started first line of bash I m getting this error on linux

docker run -d --network host  --privileged --name cosmos-server -h cosmos-server --restart=always -v /var/run/docker.sock:/var/run/docker.sock -v /:/mnt/host -v /var/lib/cosmos:/config azukaar/cosmos-server:latest
docker: permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Head "http://%2Fvar%2Frun%2Fdocker.sock/_ping": dial unix /var/run/docker.sock: connect: permission denied.
See 'docker run --help'.

Running sudo works, maybe make a note about it. The official docker installation for ubuntu make you use sudo to verify your installation.