Minor tweaks to RELEASE_NOTES.txt

Author: garydgregory

RELEASE_NOTES.txt

@@ -2,23 +2,23 @@
 ------------------
 
 This is the first ALPHA release in the 5.5 release series. It adds several experimental
-features and improvements such as request multiplexing over shared HTTP/2 connection
+features and improvements such as request multiplexing over a shared HTTP/2 connection
 and the Classic API facade acting as a compatibility bridge between classic I/O client
 services and the asynchronous message transport used internally.
 
 
-Notable changes and features included in the 5.4 series:
+Notable changes and features included in the 5.5 series:
 
-* Improved conformance to RFC 7616 (DIGEST auth).
+* Improved conformance to RFC 7616 (HTTP Digest Access Authentication).
 
-* Connections pool implementation that acts as a caching facade in front of a standard
+* The connection pool implementation acts as a caching facade in front of a standard
   managed connection pool and shares already leased connections to multiplex message
   exchanges over active HTTP/2 connections. Experimental.
 
 * Extended Auth API and improved authentication protocol logic to support mutual
   authentication.
 
-* Classic API facade acting as a compatibility bridge between the classic I/O client
+* The Classic API facade acting as a compatibility bridge between the classic I/O client
   services (based on the standard InputStream / OutputStream model) and the asynchronous
   message transport used internally. Experimental.
 
@@ -41,11 +41,11 @@ Change Log
 * Decode Subject Alternative Names for IP, DNS, and binary data (#610).
   Contributed by Arturo Bernal <abernal at apache.org>
 
-* Do not add `Upgrade` header if `Connection` header already present (the caller manually
+* Do not add `Upgrade` header if `Connection` header is already present (the caller manually
   manages connection state).
   Contributed by Oleg Kalnichevski <olegk at apache.org>
 
-* Avoid logging HTTP message version where it can be a hint, not an actual protocol version.
+* Avoid logging the HTTP message version where it can be a hint, not a protocol version.
   Contributed by Oleg Kalnichevski <olegk at apache.org>
 
 * Experimental connections pool implementation that acts as a caching facade in front of