Rename CI job and add docco

Author: craigfowler

.github/workflows/dotnetCi.yml

@@ -8,7 +8,22 @@ on:
 
 jobs:
 
-  buildAndRunBasicTests:
+  # Summary:
+  #
+  # * Installs and configures the environment
+  # * Builds the solution with SonarScanner analysis
+  #   * In Debug configuration
+  #   * For just one TFM (typically the latest LTS .NET release)
+  # * Runs all .NET and JS tests
+  #   * In Debug configuration (.NET tests)
+  #   * Producing code coverage reports, consumed by SonarScanner
+  #   * For just one TFM (typically the latest LTS .NET release)
+  #   * WebDriver-based tests use a locally-running Chrome browser ONLY
+  # * Packages test results as build artifacts
+  # * Builds & packs the solution in Release configuration
+  # * Uploads the Release config packages as build artifacts
+
+  build_test_and_pack:
     runs-on: ubuntu-slim
 
     env: