feat(config): add post-release event file

README.md

@@ -40,6 +40,8 @@ You can create an `.rczrc`, `.rczrc.json` or `rcz.config.json` file in your root
 }
 ```
 
+### On-release event
+
 You are also able to create an onRelease event file, that is going to run before creation of a git tag and a release commit, when `rcz release` is run. The file is to be named `.rczrc.onrelease.js`. A sample can be seen below.
 
 ```js
@@ -62,3 +64,7 @@ fs.writeFileSync("./src/index.ts", newIndexFile); // Write to source code index
 In your onRelease file you are provided with `__NEW_VERSION__` constant string which is the new version submitted in `rcz release` and `__IS_SIGNED__` constant which is a boolean telling whether the release (it's commit and tag) is going to be signed.
 
 Bear in mind, **this script is going to be executed through `eval()` with no sanitation**, be careful with whatever you write.
+
+### Post-release event
+
+Same as for onRelease you can also create a postRelease file which gets run after the tag and commit get created. Same as for onRelease file you are provided with `__NEW_VERSION__` and `__IS_SIGNED__`