docs: mention that the theme supports gatsby 4 (#117)

.changeset/angry-horses-exist.md

@@ -2,4 +2,4 @@
 '@rocketseat/gatsby-theme-docs-core': major
 ---
 
-Update Gatsby dependencies to support v4
+Add support for Gatsby v4

.changeset/twenty-rats-fry.md

@@ -2,4 +2,4 @@
 '@rocketseat/gatsby-theme-docs': major
 ---
 
-Update Gatsby dependencies to support v4
+Add support for Gatsby v4

examples/gatsby-theme-docs/src/@rocketseat/gatsby-theme-docs/text/index.mdx

@@ -6,7 +6,7 @@ things and focus on what matters: **writing docs.**
 
 ## Features
 
-- ⚛️ Ready for Gatsby v3;
+- ⚛️ Ready for Gatsby v4;
 - 📝 MDX for docs;
 - 🛣 Yaml-based sidebar navigation;
 - 📱 Responsive and mobile friendly;

examples/gatsby-theme-docs/src/docs/faq.mdx

@@ -21,10 +21,11 @@ includes deploy tutorials for many services, like [Vercel](https://vercel.com/),
 
 ## What are good examples of the theme usage?
 
-- [Unform](https://unform.dev)
 - [Botmation](https://botmation.dev)
-- [use-shopping-cart](https://useshoppingcart.com/)
-- [golangci-lint](https://golangci-lint.run/)
+- [Unform](https://unform.dev)
 - [Use Pandas](https://www.usepandas.com/)
+- [golangci-lint](https://golangci-lint.run/)
+- [react-observing](https://react-observing.web.app/)
+- [use-cloudinary](https://use-cloudinary.netlify.app/)
 
 ps: are you using this project? Submit a PR to add it to the [list](https://github.com/jpedroschmitz/rocketdocs/blob/main/examples/gatsby-theme-docs/src/docs/faq.mdx#what-are-good-examples-of-the-theme-usage).

examples/gatsby-theme-docs/src/docs/getting-started.mdx

@@ -3,8 +3,8 @@ title: 'Getting started'
 description: Learn how to get started with Rocket Docs.
 ---
 
-> Rocket Docs is ready for Gatsby v3. New projects will use the new version! <br />
-> If you are still on Gatsby v2, configure it manually.
+> Rocket Docs is ready for Gatsby v4. New projects will use the new version! <br />
+> If you are still on Gatsby v3 or v2, configure it manually.
 
 The best way to start is by using our starter: