Update CHANGELOG.md

Co-authored-by: Daniel Straub <[email protected]>

Author: jonasscheid

CHANGELOG.md

@@ -7,7 +7,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### `Added`
 
-- Added metro map to README
+- [#333](https://github.com/nf-core/epitopeprediction/pull/333) Added metro map to README
 - [#315](https://github.com/nf-core/epitopeprediction/pull/315) Added module bcftools/norm and parameter `--genome` for reference.fasta input ([@SusiJo](https://github.com/SusiJo/))
 - [#316](https://github.com/nf-core/epitopeprediction/pull/316) Added parameter `--biomart_dump_path` for offline biomart usage that addresses issue[#248](https://github.com/nf-core/epitopeprediction/issues/248) ([@SusiJo](https://github.com/SusiJo/))
 - Extract protein IDs (ENSP, UniProt, RefSeq) directly from VCF CSQ annotations as fallback when BioMart lookup fails