Add dotnet coverage example

doc/ci/pipelines/settings.md

@@ -134,7 +134,7 @@ averaged.
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 | Coverage Tool                                  | Sample regular expression                     |
-|------------------------------------------------|---------------------------|
+|------------------------------------------------|-----------------------------------------------|
 | Simplecov (Ruby)                               | `\(\d+.\d+\%\) covered`                       |
 | pytest-cov (Python)                            | `^TOTAL.+?(\d+\%)$`                           |
 | Scoverage (Scala)                              | `Statement coverage[A-Za-z\.*]\s*:\s*([^%]+)` |
@@ -146,6 +146,8 @@ averaged.
 | `mix test --cover` (Elixir)                    | `\d+.\d+\%\s+\|\s+Total`                      |
 | JaCoCo (Java/Kotlin)                           | `Total.*?([0-9]{1,3})%`                       |
 | `go test -cover` (Go)                          | `coverage: \d+.\d+% of statements`            |
+| .Net (OpenCover)                               | `(Visited Points).*\((.*)\)`                  |
+| .Net (`dotnet test` line coverage)             | `Total\s*\|\s*(\d+\.?\d+)`                    |
 
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