[Bug] VS Code move-analyzer instructions refer to the old repo path

It says:
```
Invoke cargo install --git https://github.com/diem/diem move-analyzer to install the move-analyzer language server in your Cargo binary directory. On macOS and Linux this is usually ~/.cargo/bin. You'll want to make sure this location is in your PATH environment variable.
```

Might be good to just sweep the repo to see if we have other references of the old repo path.