misc: update URLs to non-HTML versions

README.md

@@ -21,7 +21,7 @@ Docusaurus is a project for easily building, deploying, and maintaining open sou
 
 - **Simple to Start** Docusaurus is built to be easy to [get up and running](https://docusaurus.io/docs/en/installation.html) in as little time possible. We've built Docusaurus to handle the website build process so you can focus on your project.
 - **Localizable** Docusaurus ships with [localization support](https://docusaurus.io/docs/en/translation.html) via CrowdIn. Empower and grow your international community by translating your documentation.
-- **Customizable** While Docusaurus ships with the key pages and sections you need to get started, including a home page, a docs section, a [blog](https://docusaurus.io/docs/en/blog.html), and additional support pages, it is also [customizable](https://docusaurus.io/docs/en/custom-pages.html) as well to ensure you have a site that is [uniquely yours](https://docusaurus.io/docs/en/api-pages.html).
+- **Customizable** While Docusaurus ships with the key pages and sections you need to get started, including a home page, a docs section, a [blog](https://docusaurus.io/blog/), and additional support pages, it is also [customizable](https://docusaurus.io/docs/en/custom-pages.html) as well to ensure you have a site that is [uniquely yours](https://docusaurus.io/docs/en/api-pages.html).
 
 ## Installation