start a "similar solutions" section in the readme (#77)

* start a "similar solutions" section in the readme

* add vfs to readme

README.md

@@ -25,5 +25,8 @@ how to debug (browser):
  - run `npm build:watch` to start transpiling all source files to es5 whenever they change (CTR+c to exit)
  - in a different window, run `npm start` to run a development server that watches the es5 files and serves them to the browser
  - open `http://localhost:8080/webtest.bundle` to run live tests that will update while you change the source code
-#
+
+## similar solutions
+ - [vinyl](https://github.com/gulpjs/vinyl) - a standard API for file descriptors, designed for gulp. More complex than :kiss:fs.
+ - [vfs](https://github.com/c9/vfs) - a file-system API with HTTP transport layer. More complex than :kiss:fs.