diff --git a/bin/update-readmes.js b/bin/update-readmes.js
index 038cfa34c62133..8f047e2cd7e34c 100755
--- a/bin/update-readmes.js
+++ b/bin/update-readmes.js
@@ -8,7 +8,7 @@ const packages = [
 	//'autop',
 	//'blob',
 	//'block-editor',
-	//'block-library',
+	'block-library',
 	//'block-serialization-default-parser',
 	//'blocks',
 	//'compose',
diff --git a/packages/block-library/README.md b/packages/block-library/README.md
index d9f50a3432a55b..f21ffbea41303d 100644
--- a/packages/block-library/README.md
+++ b/packages/block-library/README.md
@@ -12,7 +12,17 @@ npm install @wordpress/block-library --save
 
 _This package assumes that your code will run in an **ES2015+** environment. If you're using an environment that has limited or no support for ES2015+ such as lower versions of IE then using [core-js](https://github.com/zloirock/core-js) or [@babel/polyfill](https://babeljs.io/docs/en/next/babel-polyfill) will add support for these methods. Learn more about it in [Babel docs](https://babeljs.io/docs/en/next/caveats)._
 
-## Usage
+## API
+
+<!-- START TOKEN(Autogenerated API docs) -->
+
+### registerCoreBlocks
+
+[src/index.js#L69-L130](src/index.js#L69-L130)
+
+Function to register core blocks provided by the block editor.
+
+**Usage**
 
 ```js
 import { registerCoreBlocks } from '@wordpress/block-library';
@@ -20,4 +30,7 @@ import { registerCoreBlocks } from '@wordpress/block-library';
 registerCoreBlocks();
 ```
 
+
+<!-- END TOKEN(Autogenerated API docs) -->
+
 <br/><br/><p align="center"><img src="https://s.w.org/style/images/codeispoetry.png?1" alt="Code is Poetry." /></p>
diff --git a/packages/block-library/src/index.js b/packages/block-library/src/index.js
index eb6cd561d887a5..1fc00265bc8759 100644
--- a/packages/block-library/src/index.js
+++ b/packages/block-library/src/index.js
@@ -56,6 +56,16 @@ import * as tagCloud from './tag-cloud';
 
 import * as classic from './classic';
 
+/**
+ * Function to register core blocks provided by the block editor.
+ *
+ * @example
+ * ```js
+ * import { registerCoreBlocks } from '@wordpress/block-library';
+ *
+ * registerCoreBlocks();
+ * ```
+ */
 export const registerCoreBlocks = () => {
 	[
 		// Common blocks are grouped at the top to prioritize their display