feat(changelog): detect /changelog.markdown

Haroenv · Haroenv · commit bcf21a1dc2a0 · 2017-11-20T18:24:18.000+01:00
this is used by browserify
diff --git a/github.js b/github.js
@@ -19,6 +19,7 @@ function getChangelog({ githubRepo }) {
     'CHANGELOG.md',
     'ChangeLog.md',
     'changelog.md',
+    'changelog.markdown',
     'CHANGELOG',
     'ChangeLog',
     'changelog',
