Add sarek logo to subway map + update workflow figure

CHANGELOG.md

@@ -18,8 +18,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - [#464](https://github.com/nf-core/sarek/pull/464), [#514](https://github.com/nf-core/sarek/pull/514) - Add `DRAGMAP` as a possible aligner
 - [#479](https://github.com/nf-core/sarek/pull/479) - Add more subworkflows
 - [#485](https://github.com/nf-core/sarek/pull/485) - `--skip_qc`, `--skip_markduplicates` and `--skip_bqsr` is now `--skip_tools`
-- [#507](https://github.com/nf-core/sarek/pull/507) - Subway map for building indexes
-- [#512](https://github.com/nf-core/sarek/pull/512) - Subway map for pipeline
+- [#507](https://github.com/nf-core/sarek/pull/507), [#537](https://github.com/nf-core/sarek/pull/537) - Subway map for building indexes
+- [#512](https://github.com/nf-core/sarek/pull/512), [#531](https://github.com/nf-core/sarek/pull/531), [#537](https://github.com/nf-core/sarek/pull/537) - Subway map for pipeline
 - [#522](https://github.com/nf-core/sarek/pull/522) - Add QC for vcf files & MultiQC
 
 ### Changed
@@ -42,6 +42,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - [#501](https://github.com/nf-core/sarek/pull/501) - Sync `TEMPLATE` with `tools` `2.3`
 - [#511](https://github.com/nf-core/sarek/pull/511) - Sync `TEMPLATE` with `tools` `2.3.2`
 - [#520](https://github.com/nf-core/sarek/pull/520) - Improve annotation subworkflows
+- [#537](https://github.com/nf-core/sarek/pull/537) - Update workflow figure
 
 ### Fixed