chore: update release guide (#1495)

docs/development/releasing.md

@@ -21,3 +21,20 @@
     - Before publishing, replace `blob/master/docs` with `blob/v1.1.0/docs` in all the links.
 1. Use "Save Draft", not "Publish".
 
+# Releasing to npm
+
+1. Mark a new version.
+    - Bump `package.json` version to `vXXX.YYY.ZZZ`.
+    - `npm run doc` to update documentation links.
+    - Send a PR titled `chore: mark version vXXX.YYY.ZZZ`.
+    - Make sure the PR passes all required checks.
+    - Merge it.
+1. Click 'Publish release' button on the prepared release notes.
+1. Publish to npm.
+    - `npm login`
+    - `node utils/publish_all_packages.sh --release`
+1. Mark post release.
+    - Bump `package.json` version to `vXXX.YYY.ZZZ-post`.
+    - `npm run doc` to update documentation links.
+    - Merge a PR titled `chore: bump version to vXXX.YYY.ZZZ-post`.
+    - **NOTE**: no other commits should be landed in-between release commit and bump commit.