Fix bunx (#18)

* Add symlink for bunx

* Remove node_modules, use bundled code instead

* Add revision support

.gitattributes

@@ -0,0 +1 @@
+dist/**/* linguist-generated=true

.gitignore

@@ -1 +1,3 @@
 .DS_Store
+node_modules/
+

README.md

@@ -4,50 +4,22 @@ Download, install, and setup [Bun](https://bun.sh) in GitHub Actions.
 
 ## Usage
 
-### Latest release
-
 ```yaml
 - uses: oven-sh/setup-bun@v1
   with:
     bun-version: latest
 ```
 
-### Specific release
-
-```yaml
-- uses: oven-sh/setup-bun@v1
-  with:
-    bun-version: "0.5.6"
-```
-
-### Canary release
+## Inputs
 
-```yaml
-- uses: oven-sh/setup-bun@v1
-  with:
-    bun-version: canary
-```
+| Name          | Description                                 | Default  | Examples                   |
+| ------------- | ------------------------------------------- | -------- | -------------------------- |
+| `bun-version` | The version of Bun to download and install. | `latest` | `canary`, `1.0.0`, `<sha>` |
 
-### Specific canary release
+## Outputs
 
-```yaml
-- uses: oven-sh/setup-bun@v1
-  with:
-    bun-version: 9be68ac2350b965037f408ce4d47c3b9d9a76b63
-```
-
-### Action run
-
-```yaml
-- uses: oven-sh/setup-bun@v1
-  with:
-    bun-version: "action:4308768069"
-```
-
-### Custom download URL
-
-```yaml
-- uses: oven-sh/setup-bun@v1
-  with:
-    bun-download-url: https://example.com/path/to/bun.zip
-```
+| Name           | Description                                | Example                                          |
+| -------------- | ------------------------------------------ | ------------------------------------------------ |
+| `cache-hit`    | If the Bun executable was read from cache. | `true`                                           |
+| `bun-version`  | The output from `bun --version`.           | `1.0.0`                                          |
+| `bun-revision` | The output from `bun --revision`.          | `1.0.0+822a00c4d508b54f650933a73ca5f4a3af9a7983` |