Can’t install protoc-gen-grpc-web

I have downloaded a binary file from this page: https://github.com/grpc/grpc-web/releases/tag/1.0.7

and followed these steps:

sudo mv ~/Downloads/protoc-gen-grpc-web-1.0.7-linux-x86_64
/usr/local/bin/protoc-gen-grpc-web
$ chmod +x /usr/local/bin/protoc-gen-grpc-web

but it didn’t add up to PATH,full instructions here:
https://www.npmjs.com/package/grpc-web

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Author: Aika Sat