Update CHANGELOG.md

Author: oclyke

Diff for: docs/CHANGELOG.md

@@ -5,6 +5,10 @@ This is a record of the major changes between versions of the SparkFun Arduino A
 
 Each log entry will use the version number of the release that contains the changes listed. Newest version at the top of the file (just below this line)
 
+1.0.3 - Jul 16 2019
+===================
+- Fix platform discrepancies in upload tools (SVL)
+
 1.0.2 - Jul 10 2019
 ===================
 - Fix upload tools (single file binaries w/ executable permissions)
@@ -28,4 +32,4 @@ Each log entry will use the version number of the release that contains the chan
 
 0.0.0 - Jun 14 2019
 ===================
-Initial release
+Initial release