Maintain style consistency on titles

docs/pages/blog/mui-x-v8-alpha-zero.md

@@ -41,9 +41,9 @@ All new features and enhancements will go to v8, and after its first stable rele
 As mentioned above, v7 is still the official version, so by default, the documentation shows v7 features and API.
 The next version's documentation is in the `v8` subdomain.
 
-- [https://next.mui.com/x/](https://next.mui.com/x/)
+- [https://next.mui.com/x/introduction/](https://next.mui.com/x/introduction/)
 
-## What's coming in v8
+## What's coming in v8?
 
 The following is a list of enhancements in the pipeline for v8.
 It contains the highlights we aim to include in the first versions:
@@ -78,7 +78,7 @@ It contains the highlights we aim to include in the first versions:
 You can check our [roadmap](https://github.com/orgs/mui/projects/35) for the full live list.
 :::
 
-## How to migrate
+## How to migrate?
 
 As usual, we've prepared a migration guide for each component, and we'll continuously update them as we make any breaking changes during the pre-releases.
 They list every breaking change you may need to update to migrate your codebase.
@@ -90,7 +90,7 @@ They list every breaking change you may need to update to migrate your codebase.
 
 We strongly encourage you to try the new version—it builds on the solid foundation we established with v7, bringing even more improvements!
 
-## How to get involved
+## How to get involved?
 
 We'd love to hear about your expectations and pain points! Please consider [connecting with us](https://forms.gle/vsBv6CLPz9h57xg8A) for a user interview.
 You'll get an insider's perspective on the development, and you'll be able to help us iterate early on the new features.