How to download and setup protoc-gen-doc
Open terminal and run command
git clone https://github.com/pseudomuto/protoc-gen-doc.git
git clone is used to create a copy or clone of protoc-gen-doc repositories.
You pass git clone a repository URL. it supports a few different network protocols and corresponding URL formats.
Also you may download zip file with protoc-gen-doc https://github.com/pseudomuto/protoc-gen-doc/archive/master.zip
Or simply clone protoc-gen-doc with SSH
[email protected]:pseudomuto/protoc-gen-doc.git