Ultra tiny typo fix (release-drafter#881)

A single character to be precise.

README.md

@@ -314,7 +314,7 @@ The Release Drafter GitHub Action accepts a number of optional inputs directly i
 | `tag`         | The tag name to be associated with the GitHub release that's created or updated. This will override any `tag-template` specified in your `release-drafter.yml` if defined.                                                                                                                                                                                         |
 | `version`     | The version to be associated with the GitHub release that's created or updated. This will override any version calculated by the release-drafter.                                                                                                                                                                                                                  |
 | `publish`     | A boolean indicating whether the release being created or updated should be immediately published. This may be useful if the output of a previous workflow step determines that a new version of your project has been (or will be) released, as with [`salsify/action-detect-and-tag-new-version`](https://github.com/salsify/action-detect-and-tag-new-version). |
-| `prerelease`  | A boolean indicating whether the relase being created or updated is a prerelease.                                                                                                                                                                                                                                                                                  |
+| `prerelease`  | A boolean indicating whether the release being created or updated is a prerelease.                                                                                                                                                                                                                                                                                  |
 | `commitish`   | A string specifying the target branch for the release being created.                                                                                                                                                                                                                                                                                               |
 
 ## Action Outputs