Doc for inc() function

Author: mbtools

README.md

@@ -424,17 +424,18 @@ Strict-mode Comparators and Ranges will be strict about the SemVer
 strings that they parse.
 
 * `valid(v)`: Return the parsed version, or null if it's not valid.
-* `inc(v, release, options, identifier, identifierBase)`: 
+* `inc(v, releaseType, options, identifier, identifierBase)`: 
   Return the version incremented by the release
   type (`major`, `premajor`, `minor`, `preminor`, `patch`,
-  `prepatch`, or `prerelease`), or null if it's not valid
+  `prepatch`, `prerelease`, or `release`), or null if it's not valid
   * `premajor` in one call will bump the version up to the next major
     version and down to a prerelease of that major version.
     `preminor`, and `prepatch` work the same way.
   * If called from a non-prerelease version, `prerelease` will work the
     same as `prepatch`. It increments the patch version and then makes a
     prerelease. If the input version is already a prerelease it simply
     increments it.
+  * `release` will remove any prerelease part of the version.
   * `identifier` can be used to prefix `premajor`, `preminor`,
     `prepatch`, or `prerelease` version increments. `identifierBase`
     is the base to be used for the `prerelease` identifier.