Adding more examples to Readme, caveats and inEnvironment info

[jefffriesen]

I hope these examples are helpful to people. I think your examples repo is helpful, but the examples are so complicated it doesn't give you an at-a-glance view of what the library can do. I was hoping to show people right away things like from, filter, reduce, catch and if they need it, inEnvironment.

I also wanted to make it clear that Node.js support was limited (I didn't realize that when I started). I think in the future Node users could be a major consumer of this library. Sorry I didn't have time to submit a PR to make Node.js work.

I'm happy to make modifications or additions to this PR if you want

[MichaReiser]

Thank you for the PR.

I will take a look soon when I have more time at hand. I think most is well explained with a potential to formulate some statements a little bit from a more positive perspective ;)