chore: update release document (#1531)

.github/workflows/release-please.yml

diff --git a/.github/workflows/release-please.yml b/.github/workflows/release-please.yml
index 5282ce3..40f3b66 100644
--- a/.github/workflows/release-please.yml
+++ b/.github/workflows/release-please.yml
@@ -4,6 +4,7 @@
   push:
     branches:
       - main
+  workflow_dispatch:
 
 jobs:
   release-please:
@@ -15,6 +16,7 @@
         id: release
         with:
           release-type: node
+          manifest-file: .release-please-manifest.json
 
   npm-publish:
     needs: release-please

.release-please-manifest.json

diff --git a/.release-please-manifest.json b/.release-please-manifest.json
new file mode 100644
index 0000000..13464ff
--- /dev/null
+++ b/.release-please-manifest.json
@@ -0,0 +1,6 @@
+{
+  "pull-request-title-pattern": "chore: release v${version}",
+  "extra-files": [
+    "README.md"
+  ]
+}

README.md

diff --git a/README.md b/README.md
index 9357de3..97f50ef 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,9 @@
 
 API references are available in the [doc](doc/README.md) directory.
 
+<!-- x-release-please-start-version -->
 ## Current version: 8.0.0
+<!-- x-release-please-end -->
 
 (See [CHANGELOG.md](CHANGELOG.md) for complete Changelog)
 

doc/contributing/creating_a_release.md

diff --git a/doc/contributing/creating_a_release.md b/doc/contributing/creating_a_release.md
index f263dc3..02e9cbc 100644
--- a/doc/contributing/creating_a_release.md
+++ b/doc/contributing/creating_a_release.md
@@ -6,7 +6,17 @@
 Working Group who manages the Node.js npm user to add you if
 there are no other active collaborators.
 
-## Prerequisites
+Generally, the release is handled by the
+[release-please](https://github.com/nodejs/node-addon-api/blob/main/.github/workflows/release-please.yml)
+GitHub action. It will bump the version in `package.json` and publish
+node-addon-api to npm.
+
+In cases that the release-please action is not working, please follow the steps
+below to publish node-addon-api manually.
+
+## Publish new release manually
+
+### Prerequisites
 
 Before to start creating a new release check if you have installed the following
 tools:
@@ -16,7 +26,7 @@
 If not please follow the instruction reported in the tool's documentation to
 install it.
 
-## Publish new release
+### Steps
 
 These are the steps to follow to create a new release: