docs: introducing LanceDB Guru on Gurubase.io (#1797)

Hello team,

I'm the maintainer of [Anteon](https://github.com/getanteon/anteon). We
have created Gurubase.io with the mission of building a centralized,
open-source tool-focused knowledge base. Essentially, each "guru" is
equipped with custom knowledge to answer user questions based on
collected data related to that tool.

I wanted to update you that I've manually added the [LanceDB
Guru](https://gurubase.io/g/lancedb) to Gurubase. LanceDB Guru uses the
data from this repo and data from the
[docs](https://lancedb.github.io/lancedb/) to answer questions by
leveraging the LLM.

In this PR, I showcased the "LanceDB Guru", which highlights that
LanceDB now has an AI assistant available to help users with their
questions. Please let me know your thoughts on this contribution.

Additionally, if you want me to disable LanceDB Guru in Gurubase, just
let me know that's totally fine.

Signed-off-by: Kursat Aktas <kursat.ce@gmail.com>

README.md

@@ -10,6 +10,7 @@
 [![Blog](https://img.shields.io/badge/Blog-12100E?style=for-the-badge&logoColor=white)](https://blog.lancedb.com/)
 [![Discord](https://img.shields.io/badge/Discord-%235865F2.svg?style=for-the-badge&logo=discord&logoColor=white)](https://discord.gg/zMM32dvNtd)
 [![Twitter](https://img.shields.io/badge/Twitter-%231DA1F2.svg?style=for-the-badge&logo=Twitter&logoColor=white)](https://twitter.com/lancedb)
+[![Gurubase](https://img.shields.io/badge/Gurubase-Ask%20LanceDB%20Guru-006BFF?style=for-the-badge)](https://gurubase.io/g/lancedb)
 
 </p>