README.md in bump-0.9.0 vs README.md in bump-0.10.0

@@ -15,11 +15,11 @@
 
 ### Show current version
 
     bump current
 
-> Current version: 0.1.2
+> 0.1.2
 
 ### Bump (major, minor, patch, pre)
 
     bump patch
 
@@ -27,17 +27,17 @@
 
 ### Show next version
 
     bump show-next patch
 
-> Next patch version: 0.1.3
+> 0.1.3
 
 ### Show version file path
 
     bump file
 
-> Version file path: lib/foo/version.rb
+> lib/foo/version.rb
 
 ## Options
 
 ### `--no-commit`
 
@@ -64,11 +64,11 @@
 
 ### `--replace-in`
 
 Bump the version in additional files.
 
-    bump patch --reaplace-in Readme.md
+    bump patch --replace-in Readme.md
 
 ### `--commit-message [MSG], -m [MSG]`
 
 Append additional information to the commit message.
 
@@ -78,21 +78,31 @@
 
     bump patch -m "Something extra"
 
 ### `--changelog`
 
-Update `CHANGELOG.md` when bumping.
+Updates `CHANGELOG.md` when bumping.
 This requires a heading (starting with `##`) that includes the previous version and a heading above that, for example:
 
 ```markdown
 ### Next
 - Added bar
 
 ### v0.0.0 - 2019-12-24
 - Added foo
 ```
 
+### `--edit-changelog`
+
+Updates CHANGELOG.md when bumping (see above), and
+opens the changelog in an editor specified in `$EDITOR` (or `vi`),
+then waits for the editor to be closed and continues.
+
+```bash
+EDITOR="subl -n -w" bump patch --edit-changelog
+```
+
 ## Rake
 
 ```ruby
 # Rakefile
 require "bump/tasks"
@@ -104,9 +114,11 @@
 # bump the version in additional files
 # Bump.replace_in_default = ["Readme.md"]
 #
 # Maintain changelog:
 # Bump.changelog = true
+# Opens the changelog in an editor when bumping
+# Bump.changelog = :editor
 ```
 
     rake bump:current                           # display current version
     rake bump:show-next INCREMENT=minor         # display next minor version
     rake bump:file                              # display version file path