Add a few notes on meteor.

js/helo/README.md

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# helo
Pick a name and babble on to your hearts content.
## Meteor
- quite fun to start
- db security: anyone can insert?
- must create custom meteor packages to use npm packages?
- no urls, no api: user/hacker hostile
- all-in-one package, mongodb bundled, nice start
    * probably well-suited for learning/teaching?