Updated documentation to resolve PR comments

Author: katmsft

Changelog.txt

@@ -3,11 +3,12 @@ History of Changes
 
 Changes in v6.0.0
 - Upgraded CPPRest to latest version: 2.10.10.
-- Resolved a potential memory leak issue in xml_wrapper.cpp.
-- Resolved an issue where getting range would update the blob/file MD5 unexpectedly.
-- Added an option in CMake to build azure-storage-cpp using /MT 
+- Resolved a memory leak issue on Linux platform in xml_wrapper.cpp.
+- Resolved an issue where `download_range_to_stream` for `azure::storage::blob` or `azure::storage::file` would update the blob/file MD5 unexpectedly.
+- Added an option `ENABLE_MT` in CMake to build azure-storage-cpp using /MT 
 - Resolved an issue where the first forward slash in the front of the blob name will always be trimmed.
-- Supported cancellation token and millisecond level timeout in C++ client library.
+- Supported cancellation token in asynchronous operations.
+- Supported millisecond level timeout.
 
 Changes in v5.2.0
 - Resolved an issue where listing blobs for blob tier returning faulty result when built with VS2013.