add reaxon

[lxsmnsyc]

"lxsmnsyc/reaxon": {
  "repository": "github:lxsmnsyc/reaxon",
  "category": "library",
  "platforms": ["any"],
  "keywords": ["reasonml", "reactive-extensions", "rx", "reactive-streams"]
}

[glennsl]

Thanks! But before I add it I'd like to see the readme fleshed out a little bit. Specifically the installation section, an example and a slightly more elaborate description would be nice.

[lxsmnsyc]

Certainly! The library is completely experimental yet, so I'll let you know if the API is final and the README has been setup.