Update 1.bug_report.yml

Change about key to description, as per the error message from GitHub.

Author: simonswiss

.github/ISSUE_TEMPLATE/1.bug_report.yml

@@ -1,5 +1,5 @@
 name: Bug Report
-about: Create a bug report for this library.
+description: Create a bug report for this library.
 title: ''
 labels: []
 issue_body: true