Update CHANGELOG.md

Author: uerceg

CHANGELOG.md

@@ -5,20 +5,20 @@
 - Added connection validity checks.
 
 #### Changed
-- Garantee that access of Activity handler of internal methods are done thru it's executor
-- Update gradle version
+- Garanteed that access of `Activity Handler` to internal methods is done through it's executor.
+- Updated gradle version.
 
 #### Fixed
 - Fixed random occurrence of attribution request being fired before session request.
-- Fix query string parsing
-- Use separate executor in background timer like previously done for foreground timer
+- Fixed query string parsing.
+- Using separate executor in background timer like previously done for foreground timer.
 
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 ### Version 4.11.1 (27th February 2017)
 #### Fixed
-- Prevent multiple created threads mentioned in android_sdk#265
-- Protect Package Manager from throwing unexpected exceptions like in android_sdk#266
+- Prevented creation of multiple threads (https://github.com/adjust/android_sdk/issues/265).
+- Protected `Package Manager` from throwing unexpected exception (https://github.com/adjust/android_sdk/issues/265).
 
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