Add lamb to readme

[chouzar]

Adding lamb to Erlang and OTP category 🐐 it is early days for this library and it doesn't have docs.
Happy to close if it needs more work.

[lpil]

I had a read through the docs but couldn't work out how to use it, and there were some places that seemed like they might be type-unsafe? Would be good to have docs at least

[chouzar]

I had a read through the docs but couldn't work out how to use it,

Thanks! Will close and re-submit once this library is a bit more polished :)

and there were some places that seemed like they might be type-unsafe?

For the most part the library should be safe to execute, it definitely needs more tests.
The query is not typed and will let you do non-matching queries, but shouldn't crash when running.