Update release notes 2

RELEASENOTES.md

@@ -2,10 +2,9 @@
 
 ### Latest dev branch (from r1.3.1) ###
 
-* DataSource improvements: DefaultUriDataSource now handles `file://`, `asset://`, `http://`,
-  `https://` and `content://` URIs automatically. It also handles `file:///android_asset/*` URIs,
-  and file paths like `/path/to/media.mp4` where the scheme is not specified (`file://` is assumed
-  in this case).
+* DataSource improvements: `DefaultUriDataSource` now handles http://, https://, file://, asset://
+  and content:// URIs automatically. It also handles `file:///android_asset/*` URIs, and file paths
+  like `/path/to/media.mp4` where the scheme is omitted.
 * HLS: Fix for some ID3 events being dropped.
 * HLS: Correctly handle 0x0 and floating point RESOLUTION tags.
 * Mp3Extractor: robustness improvements.