Merge pull request #3964 from shaedrich/coverage

Add topic "coverage"

Author: ipc103

topics/coverage/index.md

@@ -0,0 +1,11 @@
+---
+display_name: Test coverage
+short_description: Coverage is the percentage of your project being covered by—depending on the perspective—code or tests.
+topic: coverage
+related: code-coverage, test-coverage, path-coverage, line-coverage, branch-coverage, automated-testing, coverage-report, serenity-bdd, cicd
+---
+**Test coverage** is the percentage of your project being covered by—depending on the perspective—code or tests, which can be measured in different ways:
+* path coverage
+* line coverage
+* branch coverage
+* code coverage