Update README.md

README.md

@@ -137,7 +137,7 @@ Support this project with a :star:
 |                sha                |        `string`        |  `true`  |  `${{ github.sha }}`  |                                                                                                                           Specify a different <br> commit SHA <br> used for <br> comparing changes                                                                                                                            |
 |             base\_sha             |        `string`        | `false`  |                       |                                                                                                                         Specify a different <br> base commit SHA <br> used for <br> comparing changes                                                                                                                         |
 |               path                |        `string`        | `false`  |                       |                                                                                                                              Relative path under <br> `GITHUB_WORKSPACE` <br> to the repository                                                                                                                               |
-|    since\_last\_remote\_commit    |        `string`        | `false`  |        `false`        |                                                                 Use the last commit on the remote <br> branch as the `base_sha` <br> (Defaults to the previous commit). <br /> NOTE: This requires <br /> `fetch-depth: 0` <br /> with `actions/checkout@v2`                                                                  |
+|    since\_last\_remote\_commit    |        `string`        | `false`  |        `false`        |                                                                 Use the last commit on the remote <br> branch as the `base_sha` <br> (Defaults to the last commit <br> on the target branch for Pull requests <br> or the previous commit <br> on the current branch <br> for push events). <br /> NOTE: This requires <br /> `fetch-depth: 0` <br /> with `actions/checkout@v2`                                                                  |
 |          use\_fork\_point           |        `string`        | `false`  |        `false`        |             Finds best common ancestor <br /> between two commits <br /> to use in a three-way merge <br /> as the `base_sha` <br /> See: [git merge-base](https://git-scm.com/docs/git-merge-base#Documentation/git-merge-base.txt---fork-point). NOTE: This pulls the entire commit history of the base branch              |
 
 ## Example