Add pinejs as upstream in repo.yml

Change-type: patch
Signed-off-by: Giovanni Garufi <[email protected]>

CONTRIBUTING.md

@@ -0,0 +1,14 @@
+## Updating pinejs
+
+When pinejs is updated in open-balena-api, versionbot will attempt to pull in the relevant slice of changelog from pinejs and add it to the changelog in open-balena-api. For this to happen, the commit that updates pinejs must follow a specific format: the first line of the BODY must contain `Update pinejs from x.y.z to x'.y'.z'` The title and footers can be filled in as normal.
+
+N.B. just `Update pinejs from x.y.z to x'.y'.z'` will not be valid as the first line of the commit is the title (please refer to [balena-commit-lint](https://github.com/balena-io/resin-commit-lint) to learn more about how commits should be structured), a valid commit would be:
+
+```
+pinejs: Update to v9.0.1
+
+Update pinejs from 9.0.0 to 9.0.1
+
+Change-type: patch
+Signed-off-by: Joe Developer <[email protected]>
+```

repo.yml

@@ -0,0 +1,4 @@
+type: 'node'
+upstream:
+  - repo: pinejs
+    url: https://github.com/balena-io/pinejs