Update alternatives to point to x/sqlite3

[waynebloss]

Hello, the current readme points to an old unmaintained native Deno plugin (crabmusket/deno_sqlite_plugin) but now we have denodrivers/sqlite3 (published at x/sqlite3) and it looks like this one is being maintained for now...

One caveat - to use it, you have to run with the --unstable flag.

So, I was just wondering if we could update the README to point to that?

[dyedgreen]

Thank you for pointing this out! Ive left one small wording suggestion, let me know what you think 😊

[waynebloss]

Oh, I didn't realize that I needed the --allow-ffi flag too probably because I just ran it with -A when I tested it. Thanks!

[waynebloss]

The necessary flags aren't even noted in their documentation though, so if I use it I'll probably be asking them to add this info too!