Some typos in documentation and README files

[bitcapybara]

Hi, I found some typos that confused me a bit:

• In file crates/bonsaidb-local/README.md, line 1:

# BonsaiDb Client

This should probably be:

# BonsaiDb Local

• In file crates/bonsaidb-local/src/config.rs, line 326:

  /// Sets [`StorageConfiguration::path`](StorageConfiguration#structfield.memory_only) to true and returns self.

  This should probably be:

  /// Sets [`StorageConfiguration::memory_only`](StorageConfiguration#structfield.memory_only) to true and returns self.

Sorry, I forgot to create an issue before creating PR#281. I have closed that PR and added this issue

[ecton]

There wasn't a need to open an issue before submitting such small changes. I really only want an issue/discussion flow when proposing new functionality.

Thank you so much for your help in fixing these!