add download badge

README.md

@@ -2,6 +2,7 @@
 
 [![License: MIT](https://img.shields.io/badge/License-MIT-green.svg)](https://github.com/TidierOrg/TidierDB.jl/blob/main/LICENSE)
 [![Docs: Latest](https://img.shields.io/badge/Docs-Latest-blue.svg)](https://tidierorg.github.io/TidierDB.jl/latest)
+[![Downloads](https://img.shields.io/badge/dynamic/json?url=http%3A%2F%2Fjuliapkgstats.com%2Fapi%2Fv1%2Fmonthly_downloads%2FTidierDB&query=total_requests&suffix=%2Fmonth&label=Downloads)](http://juliapkgstats.com/pkg/TidierDB)
 
 <img src="docs/src/assets/logo.png" align="right" style="padding-left:10px;" width="150"/>
 
@@ -227,4 +228,4 @@ There are a few subtle but important differences from Tidier.jl outlined [here](
 
 You can use any existing SQL function within `@mutate` with the correct SQL syntax and it should just work.
 
-But if you run into problems please open an issue, and we will be happy to take a look!
+But if you run into problems please open an issue, and we will be happy to take a look!