build(deps): bump em-websocket from 0.5.2 to 0.5.3 in /docs
build(deps): bump em-websocket from 0.5.2 to 0.5.3 in /docs

Bumps [em-websocket](https://github.com/igrigorik/em-websocket) from 0.5.2 to 0.5.3.
- [Release notes](https://github.com/igrigorik/em-websocket/releases)
- [Changelog](https://github.com/igrigorik/em-websocket/blob/master/CHANGELOG.rdoc)
- [Commits](https://github.com/igrigorik/em-websocket/compare/v0.5.2...v0.5.3)

---
updated-dependencies:
- dependency-name: em-websocket
  dependency-type: indirect
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
MikeMcQuaid/brew,JCount/brew,Homebrew/brew,nandub/brew,nandub/brew,JCount/brew,JCount/brew,nandub/brew,Homebrew/brew,JCount/brew,Homebrew/brew,Homebrew/brew,nandub/brew,MikeMcQuaid/brew,MikeMcQuaid/brew,MikeMcQuaid/brew