add a publishing workflow action to dart-lang/benchmark_harness (#81)

* blast_repo fixes

auto-publish

* publish from master

* update the reference to the publish workflow

.github/workflows/publish.yaml

@@ -0,0 +1,14 @@
+# A CI configuration to auto-publish pub packages.
+
+name: Publish
+
+on:
+  pull_request:
+    branches: [ master ]
+  push:
+    tags: [ 'v[0-9]+.[0-9]+.[0-9]+*' ]
+
+jobs:
+  publish:
+    if: ${{ github.repository_owner == 'dart-lang' }}
+    uses: dart-lang/ecosystem/.github/workflows/publish.yaml@main

README.md

@@ -118,5 +118,10 @@ This is the average amount of time it takes to run `run()` 10 times for
 ### Contributions
 
 This package is carefully curated by the Dart team to exact specifications.
-Please open an issue with any proposed changes, before submitting a Pull
-Request.
+Please open an issue with any proposed changes before submitting a pull
+request.
+
+## Publishing automation
+
+For information about our publishing automation and release process, see
+https://github.com/dart-lang/ecosystem/wiki/Publishing-automation.