chore: Fix link in README (#87)

Author: limakzi

README.md

@@ -39,8 +39,8 @@ docker run -it ghcr.io/limakzi/gap-docker:4.14.0-bare
 ## Authors
 Although it was completely rewritten, this repository consists of various ideas from many repositories
 * Kamil Zabielski -- [@limakzi](https://github.com/limakzi)
-* James D. Mitchell [[1](1)] -- [@james-d-mitchell](https://github.com/james-d-mitchell)
-* Sam Tetrooy [[2](2)] -- [@stertooystertooy](https://github.com/stertooy)
+* James D. Mitchell [[1][1]] -- [@james-d-mitchell](https://github.com/james-d-mitchell)
+* Sam Tetrooy [[2][2]] -- [@stertooystertooy](https://github.com/stertooy)
 
-[1]: https://github.com/james-d-mitchell/gap-docker-minimalhttps://github.com/james-d-mitchell/gap-docker-minimal
-[2]: https://github.com/stertooy/gda-image/
+[1]: https://github.com/james-d-mitchell/gap-docker-minimal
+[2]: https://github.com/stertooy/gda-image