[docs] Fix seo issues on v4 (#28999)

docs/pages/blog/2021-q1-update.md

@@ -197,7 +197,7 @@ We will cross the ten-person milestone in the coming weeks (11).
 
 We have the following objectives:
 
-- Finish the implementation of the rebranding. A preview, the [about](https://next.material-ui.com/branding/about/) and [pricing](https://next.material-ui.com/branding/pricing/) pages.
+- Finish the implementation of the rebranding. A preview, the [about](https://mui.com/about/) and [pricing](https://mui.com/pricing/) pages.
 - Onboard the new members and scale our processes as we double the size of the organization this quarter.
 
 ### Core components

docs/pages/index.js

@@ -195,8 +195,8 @@ export default function LandingPage(props) {
   "@context": "https://schema.org",
   "@type": "Organization",
   "name": "Material-UI",
-  "url": "https://v4.material-ui.com/",
-  "logo": "https://v4.material-ui.com/static/logo.png",
+  "url": "https://v4.mui.com/",
+  "logo": "https://v4.mui.com/static/logo.png",
   "sameAs": [
     "https://twitter.com/materialUI",
     "https://github.com/mui-org/material-ui",

docs/pages/versions.js

@@ -51,7 +51,7 @@ Page.getInitialProps = async () => {
   // Legacy documentation.
   versions.push({
     version: 'v0',
-    url: 'https://v0.material-ui.com',
+    url: 'https://v0.mui.com',
   });
   versions = versions.sort((a, b) =>
     formatVersion(b.version).localeCompare(formatVersion(a.version)),
@@ -63,7 +63,7 @@ Page.getInitialProps = async () => {
   ) {
     versions.unshift({
       version: `v${Number(versions[0].version[1]) + 1} pre-release`,
-      url: 'https://next.material-ui.com',
+      url: 'https://next.mui.com',
     });
   }
 

docs/src/pages/company/careers/developer-advocate.md

@@ -12,7 +12,7 @@
 
 ## About us
 
-See the [careers](/company/careers/) and [about us](https://next.material-ui.com/branding/about/) pages.
+See the [careers](/company/careers/) and [about us](https://mui.com/about/) pages.
 
 ### Why we're hiring
 

docs/src/pages/company/careers/full-stack-engineer.md

@@ -13,7 +13,7 @@
 
 ## About us
 
-See the [careers](/company/careers/) and [about us](https://next.material-ui.com/branding/about/) pages.
+See the [careers](/company/careers/) and [about us](https://mui.com/about/) pages.
 
 ### Why we're hiring
 

docs/src/pages/company/careers/product-manager.md

@@ -12,7 +12,7 @@
 
 ## About us
 
-See the [careers](/company/careers/) and [about us](https://next.material-ui.com/branding/about/) pages.
+See the [careers](/company/careers/) and [about us](https://mui.com/about/) pages.
 
 ### Why we're hiring
 

docs/src/pages/company/careers/react-engineer.md

@@ -13,7 +13,7 @@
 
 ## About us
 
-See the [careers](/company/careers/) and [about us](https://next.material-ui.com/branding/about/) pages.
+See the [careers](/company/careers/) and [about us](https://mui.com/about/) pages.
 
 ### Why we're hiring
 

docs/src/pages/company/careers/technical-product-manager.md

@@ -12,7 +12,7 @@
 
 ## About us
 
-See the [careers](/company/careers/) and [about us](https://next.material-ui.com/branding/about/) pages.
+See the [careers](/company/careers/) and [about us](https://mui.com/about/) pages.
 
 ### Why we're hiring
 

docs/src/pages/company/software-engineer-intern/software-engineer-intern.md

@@ -9,11 +9,11 @@
 - Start date: Flexible.
 - We're a remote company, we prefer asynchronous communication over meetings.
 - We work independently; the rest of us won't know what you're doing day-to-day unless you tell us.
-- We expect the internship to be at least two months long. 
+- We expect the internship to be at least two months long.
 
 ## About Us
 
-See the [careers](/company/careers/) and [about us](https://next.material-ui.com/branding/about/) pages.
+See the [careers](/company/careers/) and [about us](https://mui.com/about/) pages.
 
 ### Why we're hiring