[DOCS] Typo in npm-scripts section

Hello, I found a small issue in the documentation of npm-scripts.

Current

{ "scripts" :
  { "install" : "scripts/install.js"
  , "postinstall" : "scripts/install.js"
  , "uninstall" : "scripts/uninstall.js"
  }
}

Expected

{ "scripts" :
  { "install" : "scripts/install.js"
  , "postinstall" : "scripts/postinstall.js"
  , "uninstall" : "scripts/uninstall.js"
  }
}

I tried to look for a way to open a pull request and update the documentation but I couldn’t find it anywhere …