Clarify changelog.

Author: paulmillr

README.md

@@ -72,11 +72,11 @@ matcher('path/anyjs/baz.js', true); // 1
 ['foo.js', 'bar.js'].filter(matcher); // ['foo.js']
 ```
 
-Change Log
+Changelog
 ----------
 [See release notes page on GitHub](https://github.com/micromatch/anymatch/releases)
 
-- **v3.0:**: Removed `startIndex` and `endIndex` arguments.
+- **v3.0:**: Removed `startIndex` and `endIndex` arguments. Node 8.x-only.
 - **v2.0:** [micromatch](https://github.com/jonschlinkert/micromatch) moves away from minimatch-parity and inline with Bash. This includes handling backslashes differently (see https://github.com/micromatch/micromatch#backslashes for more information).
 - **v1.2:** anymatch uses [micromatch](https://github.com/jonschlinkert/micromatch)
 for glob pattern matching. Issues with glob pattern matching should be