fix: Add description to bug_report.yml (#32)

### Fixed

- Added missing description to bug_report.yml.

Author: beatrizsavinhas

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -1,4 +1,5 @@
 name: Bug report
+description: Report something that is broken or incorrect
 labels: ["Bug"]
 projects: ["Clinical-Genomics/108"]
 body:

CHANGELOG.md

@@ -26,6 +26,7 @@ Initial release of nf-core/oncorefiner, created with the [nf-core](https://nf-co
 - Removed snv_vcf_tbi and sv_vcf_tbi parameter. VCF indexes are now automatically detected [#9](https://github.com/Clinical-Genomics/oncorefiner/pull/9)
 - Renamed pipeline from postprocessing to oncorefiner []()
 - Fixed linting issues [#20](https://github.com/Clinical-Genomics/oncorefiner/pull/20)
+- Added missing description to bug_report.yml [32](https://github.com/Clinical-Genomics/oncorefiner/pull/32)
 
 ### `Dependencies`