[changed] the usage of '[rf|mt]-changelog' package is optional now

If a project uses one of '[rf|mt]-changelog' packages,
then this script will automatically use them.

this commit is instead of [8570c30](../../commit/8570c30) for changelog

README.md

@@ -11,9 +11,9 @@ this tools helps to deal with that too.
 Just create new additional github repo for `Bower` version of your project.
 This repo will contain only commits generated by this tool.
 
-Say the name of your project is:
-`original-project-name`.
-Then name the `bower` github repo as:
+Say the name of your project is
+`original-project-name`
+then name the `bower` github repo as
 `original-project-name-bower`.
 
 Add `'release-script'.bowerRepo` into your `package.json`:
@@ -85,7 +85,7 @@ E.g.:
 > npm install -D release-script
 ```
 
-Set `'release-script'.bowerRepo` into your `package.json` if you need `bower` releases too.
+If you need `bower` releases too, then add `'release-script'.bowerRepo` into your `package.json` like this:
 ```js
 "release-script": {
   "bowerRepo": "git@github.com:<org-author-name>/<name-of-project>-bower.git"