Update readme/config/1.34 post to address warnings

Signed-off-by: Brad Davidson <brad.davidson@rancher.com>

Author: brandond

README.md

@@ -20,7 +20,7 @@ This command starts a local development server and opens up a browser window. Mo
 
 You can also use Docker to launch the website without needing to install and configure yarn:
 ```
-docker run --rm -d --name k3s-docs -v $PWD:$PWD -w $PWD -u $(id -u) -p 3000:3000 node:18 sh -c 'yarn; yarn start -h 0.0.0.0'
+$ docker run --rm -d --name k3s-docs -e HOME=$PWD -v $PWD:$PWD -w $PWD -u $(id -u) -p 3000:3000 node:22 sh -c 'corepack yarn start -h 0.0.0.0'
 ```
 
 ### Build

blog/2025-08-30-K3s-1.34-release.md

@@ -8,6 +8,8 @@ Kubernetes 1.34 is finally here! A look back at K3s recent work and achievements
 
 It's been a busy and productive few months, and we're excited to share some of the amazing progress we've made. From new features that make your lives easier to important bug fixes and foundational improvements, our team and community have been hard at work.
 
+<!-- truncate -->
+
 ## Key Features and Improvements ✨
 Here’s a look at some of the most impactful features and updates we've rolled out:
 

docusaurus.config.js

@@ -6,13 +6,15 @@ module.exports = {
   url: 'https://docs.k3s.io',
   baseUrl: '/',
   onBrokenLinks: 'throw',
-  onBrokenMarkdownLinks: 'warn',
   favicon: 'img/favicon.ico',
   organizationName: 'k3s-io', // Usually your GitHub org/user name.
   projectName: 'docs', // Usually your repo name.
   trailingSlash: false,
   markdown: {
     mermaid: true,
+    hooks: {
+      onBrokenMarkdownLinks: 'warn',
+    },
   },
   themes: [
     '@docusaurus/theme-mermaid',