Add tag/topic libsql to this GH repo

[sokai]

… to become listed on the GH topic page: https://github.com/topics/libsql

FYI: I had no idea that libsql exists and came to https://github.com/darkterminal/mylibsqladmin. I clicked the topic button and couldn't find (like I expected) your project … (There also is a curate link for this topic, where you can/could go further …)

BR