couple of fixed links in readme.md

[SreeChandan]

First time contributor checklist:

• [ X] I have read the README

Contributor checklist:

• My commits are in nice logical chunks with good commit messages
• If my changes depend upon an update to a dependency, I have updated the package-lock.json file using npm install --package-lock
• I have used the app myself and all of the buttons work.
• I have tested the application with the commandline
  tool.
• My changes have been tested with the integration tests, and all tests pass.
• My changes are ready to be shipped to users on Mac and Linux.

Description

#641
I don't have an idea where the 'commands' link is supposed to point to.

[okdistribute]

Can you just remove the commands link? I don't think it make sense in this readme

[okdistribute]

thanks!