edit README

Author: joel-ling

README.md

@@ -67,8 +67,8 @@ It is highly unlikely that a developer
 would ever need to implement these protocols
 (since in Go, the package [`net`](https://pkg.go.dev/net)
 supplies types and methods that abstract away low-level details),
-but they make appropriate illustrations of binary message formats.
-
+but they make appropriate illustrations of binary message formats
+(and demystify some ubiquitous mechanisms taken for granted).
 
 ```
   TCP Header Format