chore: Fix workflow name

Author: peaceiris

README.md

@@ -133,7 +133,7 @@ Here is an example workflow for Hugo.
 [![peaceiris/actions-hugo - GitHub](https://gh-card.dev/repos/peaceiris/actions-hugo.svg?fullname)](https://github.com/peaceiris/actions-hugo)
 
 ```yaml
-name: github pages
+name: GitHub Pages
 
 on:
   push:
@@ -468,7 +468,7 @@ use the `full_commit_message` option instead of the `commit_message` option.
 Here is an example workflow.
 
 ```yaml
-name: github pages
+name: GitHub Pages
 
 on:
   push:
@@ -596,7 +596,7 @@ For deploying manually, we can set the `on.workflow_dispatch` workflow trigger.
 See [Manual events `workflow_dispatch` | Events that trigger workflows - GitHub Docs](https://docs.github.com/en/actions/reference/events-that-trigger-workflows#manual-events)
 
 ```yaml
-name: github pages
+name: GitHub Pages
 
 on:
   push:
@@ -638,7 +638,7 @@ e.g. `create-react-app` requires `publish_dir` to be set to `./build`
 Premise: Dependencies are managed by `package.json` and `package-lock.json`
 
 ```yaml
-name: github pages
+name: GitHub Pages
 
 on:
   push:
@@ -686,7 +686,7 @@ An example for [Gatsby] (Gatsby.js) project with [gatsby-starter-blog]
 [gatsby-starter-blog]: https://github.com/gatsbyjs/gatsby-starter-blog
 
 ```yaml
-name: github pages
+name: GitHub Pages
 
 on:
   push:
@@ -738,7 +738,7 @@ An example for [Next.js] (React.js) project with [create-next-app]
 [create-next-app]: https://nextjs.org/docs
 
 ```yaml
-name: github pages
+name: GitHub Pages
 
 on:
   push:
@@ -793,7 +793,7 @@ An example for [Nuxt.js] (Vue.js) project with [create-nuxt-app]
 [create-nuxt-app]: https://github.com/nuxt/create-nuxt-app
 
 ```yaml
-name: github pages
+name: GitHub Pages
 
 on:
   push:
@@ -843,7 +843,7 @@ An example workflow for [Docusaurus](https://docusaurus.io/).
 ```yaml
 # .github/workflows/deploy.yml
 
-name: github pages
+name: GitHub Pages
 
 on:
   push:
@@ -904,7 +904,7 @@ jobs:
 Premise: Dependencies are managed by `requirements.txt`
 
 ```yaml
-name: github pages
+name: GitHub Pages
 
 on:
   push:
@@ -964,7 +964,7 @@ An example GitHub Actions workflow to deploy [rust-lang/mdBook] site to GitHub P
 - [peaceiris/actions-mdbook: GitHub Actions for mdBook (rust-lang/mdBook)](https://github.com/peaceiris/actions-mdbook)
 
 ```yaml
-name: github pages
+name: GitHub Pages
 
 on:
   push:
@@ -1003,7 +1003,7 @@ An exapmle workflow for [Flutter web project].
 [Flutter web project]: https://flutter.dev/docs/get-started/web
 
 ```yaml
-name: github pages
+name: GitHub Pages
 
 on:
   push:
@@ -1047,7 +1047,7 @@ An example workflow for [Elm].
 [Elm]: https://elm-lang.org
 
 ```yaml
-name: github pages
+name: GitHub Pages
 
 on:
   push: