README.md doc additions for new clean_artifacts_after_build parameter

Author: Rakagami

README.md

@@ -29,6 +29,7 @@ an array of scripts to the `tool.hatch.build.hooks.build-scripts.scripts` key in
 | `work_dir` | `"."` | The directory to run the commands in. All artifact patterns are relative to this directory. |
 | `clean_artifacts` | `true` | Whether to clean files from the `out_dir` that match the artifact patterns before running the commands. |
 | `clean_out_dir` | `false` | Whether to clean the `out_dir` before running the commands. |
+| `clean_artifacts_after_build` | `false` | Whether to clean the files from the `out_dir` that were generated by the scripts. |
 
 In practice this looks like:
 
@@ -56,3 +57,4 @@ You can configure script defaults for scripts by adding a `[tool.hatch.build.hoo
 | `work_dir` | `"."` | The directory to run the commands in. All artifact patterns are relative to this directory. |
 | `clean_artifacts` | `true` | Whether to clean files from the `out_dir` that match the artifact patterns before running the commands. |
 | `clean_out_dir` | `false` | Whether to clean the `out_dir` before running the commands. |
+| `clean_artifacts_after_build` | `false` | Whether to clean the files from the `out_dir` that were generated by the scripts. |