Update changelog.md with github issue and PR details

CHANGELOG.md

@@ -14,13 +14,15 @@
 - When a macro is called with invalid arguments, include the calling model in the output ([#2073](https://github.com/fishtown-analytics/dbt/issues/2073), [#2238](https://github.com/fishtown-analytics/dbt/pull/2238))
 - When a warn exception is not in a jinja do block, return an empty string instead of None ([#2222](https://github.com/fishtown-analytics/dbt/issues/2222), [#2259](https://github.com/fishtown-analytics/dbt/pull/2259))
 - Add dbt plugin versions to --version([#2272](https://github.com/fishtown-analytics/dbt/issues/2272), [#2279](https://github.com/fishtown-analytics/dbt/pull/2279))
+- Made file names lookups case-insensitve (.sql, .SQL, .yml, .YML) and if .yaml files are found, raise a warning indicating dbt will parse these files in future releases. ([#1681](https://github.com/fishtown-analytics/dbt/issues/1681), [#2263](https://github.com/fishtown-analytics/dbt/pull/2263))
 
 Contributors:
  - [@raalsky](https://github.com/Raalsky) ([#2224](https://github.com/fishtown-analytics/dbt/pull/2224), [#2228](https://github.com/fishtown-analytics/dbt/pull/2228))
  - [@ilkinulas](https://github.com/ilkinulas) [#2199](https://github.com/fishtown-analytics/dbt/pull/2199)
  - [@kyleabeauchamp](https://github.com/kyleabeauchamp) [#2262](https://github.com/fishtown-analytics/dbt/pull/2262)
  - [@jeremyyeo](https://github.com/jeremyyeo) [#2259](https://github.com/fishtown-analytics/dbt/pull/2259)
  - [@sumanau7](https://github.com/sumanau7) [#2279](https://github.com/fishtown-analytics/dbt/pull/2279)
+ - [@sumanau7](https://github.com/sumanau7) [#2263](https://github.com/fishtown-analytics/dbt/pull/2263)
 
 ## dbt 0.16.0 (March 23, 2020)