Document direct go install from GitHub

[rotemreiss]

Closes #302.

Documentation improvement to include direct installation from main branch without cloning the repo locally.

[williammartin]

Thanks for the PR. Mixed feelings on this one. I appreciate having the ease of installation but it also hamstrings us if we want to use temporary replace directives in the go.mod (as opposed to hard forking a repository and updating all the paths).

This has caused issues before for the GitHub CLI.

Furthermore, our primary distribution mechanism are the releases and we do things like including build metadata:

github-mcp-server/Dockerfile

Line 17 in 8fb4deb

RUN --mount=type=cache,target=/root/.cache/go-build CGO_ENABLED=0 go build -ldflags="-s -w -X main.version=${VERSION} -X main.commit=$(git rev-parse HEAD) -X main.date=$(date -u +%Y-%m-%dT%H:%M:%SZ)" \

. The more we can steer away from source building the better IMO. Of course, it should always still be an option locally.