Add another vanity badge

[ccoVeille]

Maybe you will be interested in adding this badge on your project

[![Sourcegraph](https://sourcegraph.com/github.com/rivo/tview/-/badge.svg)](https://sourcegraph.com/github.com/rivo/tview?badge)

Here is what it will look like

Here is the documentation

https://sourcegraph.com/docs/getting-started/personalization/badges

I can of course open a PR

[ccoVeille]

I thought about it when I saw @smstong opening

• Add another project using tview #1053