Update shell-and-data-access.md

docs.it4i/general/shell-and-data-access.md

@@ -163,15 +163,15 @@ local $ rsync -r my-local-dir username@cluster-name.it4i.cz:directory
     The data transfer speed is limited by the single-core ssh encryption speed to about **150 MB/s**  
     Use **parallel rsync** for unlimited transfers
 
-The parallel rsync transfers multiple files at the time, utilizing multiple cores to accelerate encryption.  
+The parallel rsync transfers multiple files at the time, utilizing multiple rsync processes and cores to accelerate encryption.  
 First, set up ssh-agent single sign on:
 
-```
-console
+```console
 local $ eval `ssh-agent`
 local $ ssh-add
 Enter passphrase for /home/user/.ssh/id_rsa:
 ```
+
 Then run the rsync in parallel:
 
 ```console