Clarify distinction between SSH3 and SSH in documentation

Updated the description of 'SSH3' to better distinguish it from 'SSH'. The text now explicitly states 'SSH3 stands for the concatenation of Secure Shell and HTTP/3'. This adjustment enhances understanding by clarifying that SSH3 incorporates elements of both Secure Shell and HTTP/3, subtly differentiating it from the standard SSH protocol.

README.md

@@ -19,7 +19,7 @@ Among others, SSH3 allows the following improvements:
 > [!TIP]
 > Quickly want to get started ? Checkout how to [install SSH3](#installing-ssh3). You will learn to [setup an SSH3 server](#deploying-an-ssh3-server) and [use the SSH3 client](#using-the-ssh3-client).
 
-*SSH3* stands for the concatenation of *SSH* and *H3*.
+*SSH3* stands for the concatenation of *Secure Shell* and *HTTP/3*.
 
 ## ⚡ SSH3 is faster
 Faster for session establishment, not throughput ! SSH3 offers a significantly faster session establishment than SSHv2. Establishing a new session with SSHv2 can take 5 to 7 network round-trip times, which can easily be noticed by the user. SSH3 only needs 3 round-trip times. The keystroke latency in a running session is unchanged.