Update shell-and-data-access.md

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

@@ -13,7 +13,7 @@ All IT4Innovations clusters are accessed by the SSH protocol via login nodes at
     Karolina has gone into production with updated security requirements.
     Only clients based on OpenSSH 7.4p1 and later will be able to connect (including other SSH clients with compatible security algorithms).
     This means that starting with RHEL/Centos 7, Debian 9 or Ubuntu 18.04, you are good to go.
-    Some users which still have DSA keys will be also unable to connect and are urged to update their keypairs, preferably to Ed25519 format.
+    Some users who still have DSA keys will be also unable to connect and are urged to update their keypairs, preferably to Ed25519 format.
 
 | Login address           | Port | Protocol | Login node                            |
 | ----------------------- | ---- | -------- | ------------------------------------- |
@@ -29,7 +29,7 @@ All IT4Innovations clusters are accessed by the SSH protocol via login nodes at
     Barbora will have its security requirements updated.
     Only clients based on OpenSSH 7.4p1 and later will be able to connect (including other SSH clients with compatible security algorithms).
     This means that starting with RHEL/Centos 7, Debian 9 or Ubuntu 18.04, you are good to go.
-    Some users which still have DSA keys will be also unable to connect and are urged to update their keypairs, preferably to Ed25519 format.
+    Some users who still have DSA keys will be also unable to connect and are urged to update their keypairs, preferably to Ed25519 format.
 
     This change will be implemented in early October 2021.