docs: add @AButler as a contributor

.all-contributorsrc

@@ -0,0 +1,25 @@
+{
+  "projectName": "upload-release-assets",
+  "projectOwner": "AButler",
+  "repoType": "github",
+  "repoHost": "https://github.com",
+  "files": [
+    "README.md"
+  ],
+  "imageSize": 100,
+  "commit": true,
+  "commitConvention": "angular",
+  "contributors": [
+    {
+      "login": "AButler",
+      "name": "Andrew Butler",
+      "avatar_url": "https://avatars.githubusercontent.com/u/1628649?v=4",
+      "profile": "https://github.com/AButler",
+      "contributions": [
+        "code"
+      ]
+    }
+  ],
+  "contributorsPerLine": 7,
+  "linkToUsage": true
+}

README.md

@@ -1,26 +1,64 @@
-## Upload Release Assets - GitHub Action
+# Upload Release Assets - GitHub Action
 
 <a href="https://github.com/AButler/upload-release-assets"><img alt="GitHub Actions status" src="https://github.com/AButler/upload-release-assets/workflows/CI/badge.svg"></a>
 
+<!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
+[![All Contributors](https://img.shields.io/badge/all_contributors-1-orange.svg?style=flat-square)](#contributors-)
+<!-- ALL-CONTRIBUTORS-BADGE:END -->
+
 The Upload Release Assets GitHub Action uploads files (base on a glob) to a GitHub release. This is a cross-platform action that runs on any environment.
 
-### Usage
+## Usage
 
 ```yml
 jobs:
   build:
     # ...
     steps:
-      - uses: AButler/upload-release-assets@v2.0
+      - uses: AButler/upload-release-assets@v3.0
         with:
-          files: 'artifacts/*;packages/*.nupkg'
+          files: "artifacts/*;packages/*.nupkg"
           repo-token: ${{ secrets.GITHUB_TOKEN }}
 ```
 
-### Inputs
+## Inputs
 
 | Name          | Description                                                                                       | Examples                                                 |
-|---------------|---------------------------------------------------------------------------------------------------|----------------------------------------------------------|
+| ------------- | ------------------------------------------------------------------------------------------------- | -------------------------------------------------------- |
 | `files`       | The glob of files to upload (semicolon separate multiple globs)                                   | `file.txt` <br> `file*.txt` <br> `file_{a,b}.txt;*.json` |
 | `repo-token`  | The GitHub token to use to amend the release _(recommended to use `${{ secrets.GITHUB_TOKEN }}`)_ | `${{ secrets.GITHUB_TOKEN }}`                            |
-| `release-tag` | _(Optional)_ Specify the tag of the release to upload to                                          | `v1.0.0`                                                 |
+| `release-id`  | _(Optional)_ Explicitly specify the release id                                                    | `42`                                                     |
+| `release-tag` | _(Optional)_ Explicity specify the tag of the release                                             | `v1.0.0`                                                 |
+
+If `release-id` is specified, then this release with this will be used.
+If `release-tag` is specified, the release with this tag will be used.
+If neither are specified, the release from the action is used.
+
+## Contributors
+
+A big thanks to those who have contributed to this repo:
+
+<!-- ALL-CONTRIBUTORS-LIST:START - Do not remove or modify this section -->
+<!-- prettier-ignore-start -->
+<!-- markdownlint-disable -->
+<table>
+  <tbody>
+    <tr>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/AButler"><img src="https://avatars.githubusercontent.com/u/1628649?v=4?s=100" width="100px;" alt="Andrew Butler"/><br /><sub><b>Andrew Butler</b></sub></a><br /><a href="https://github.com/AButler/upload-release-assets/commits?author=AButler" title="Code">💻</a></td>
+    </tr>
+  </tbody>
+  <tfoot>
+    <tr>
+      <td align="center" size="13px" colspan="7">
+        <img src="https://raw.githubusercontent.com/all-contributors/all-contributors-cli/1b8533af435da9854653492b1327a23a4dbd0a10/assets/logo-small.svg">
+          <a href="https://all-contributors.js.org/docs/en/bot/usage">Add your contributions</a>
+        </img>
+      </td>
+    </tr>
+  </tfoot>
+</table>
+
+<!-- markdownlint-restore -->
+<!-- prettier-ignore-end -->
+
+<!-- ALL-CONTRIBUTORS-LIST:END -->