Fix CI badge image for Martin tileserver

README.md

@@ -1377,7 +1377,7 @@ See also [Are we game yet?](https://arewegameyet.rs)
 
 * [DaveKram/coord_transforms](https://github.com/DaveKram/coord_transforms) [[coord_transforms](https://crates.io/crates/coord_transforms)] — coordinate transformations (2-d, 3-d, and geospatial)
 * [Georust](https://github.com/georust) — geospatial tools and libraries written in Rust
-* [MapLibre/Martin](https://github.com/maplibre/martin) — Map tile server with PostGIS, MBTiles, PMTiles, and sprites support. [![CI build](https://github.com/maplibre/martin/workflows/CI/badge.svg)](https://github.com/maplibre/martin/actions)[![crates.io version](https://img.shields.io/crates/v/martin.svg)](https://crates.io/crates/martin)[![Book](https://img.shields.io/badge/docs-Book-informational)](https://maplibre.org/martin/)
+* [MapLibre/Martin](https://github.com/maplibre/martin) — Map tile server with PostGIS, MBTiles, PMTiles, and sprites support. [![CI build](https://github.com/maplibre/martin/actions/workflows/ci.yml/badge.svg)](https://github.com/maplibre/martin/actions)[![crates.io version](https://img.shields.io/crates/v/martin.svg)](https://crates.io/crates/martin)[![Book](https://img.shields.io/badge/docs-Book-informational)](https://maplibre.org/martin/)
 * [rust-reverse-geocoder](https://github.com/gx0r/rrgeo) — A fast, offline reverse geocoder in Rust, inspired by [thampiman/reverse-geocoder](https://github.com/thampiman/reverse-geocoder)
 * [vlopes11/geomorph](https://github.com/vlopes11/geomorph) [[geomorph](https://crates.io/crates/geomorph)] — conversion between UTM, LatLon and MGRS coordinates