README.md in bump-0.6.1 vs README.md in bump-0.7.0

@@ -47,10 +47,16 @@
 
 If you don't want to run the `bundle` command after bumping, add the `--no-bundle` option.
 
     bump patch --no-bundle
 
+### `--replace-in`
+
+If you want to bump the version in additional files
+
+    bump patch --reaplace-in Readme.md
+
 ### `--commit-message [MSG], -m [MSG]`
 
 If you want to append additional information to the commit message, pass it in using the `--commit-message [MSG]` or `-m [MSG]` option.
 
     bump patch --commit-message [no-ci]
@@ -67,9 +73,11 @@
 
 #
 # if you want to always tag the version, add:
 # Bump.tag_by_default = true
 #
+# if you want to bump the version in additional files, add:
+# Bump.replace_in_default = ["Readme.md"]
 
 ```
 
     rake bump:current                           # display current version
     rake bump:file                              # display version file path