Update README.md

Author: gmsa

README.md

@@ -9,7 +9,7 @@ vue-bootstrap-table is a sortable and searchable table, with Bootstrap styling,
 ### Vue 1 : [jbaysolutions/vue-bootstrap-table](https://github.com/jbaysolutions/vue-bootstrap-table)
 
 ### [Demo](https://jbaysolutions.github.io/vue2-bootstrap-table/examples/01-basic.html)
-### [Changelog](/CHANGELOG.MD)
+### [Changelog](/CHANGELOG.md)
 
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