repair external and internal links

docs.it4i/get-started-with-it4innovations/accessing-the-clusters/shell-access-and-data-transfer/putty.md

@@ -10,8 +10,11 @@ We recommned you to download "**A Windows installer for everything except PuTTYt
 
 !!! Note "Note"
 	After installation you can proceed directly to private keys authentication using ["Putty"](putty#putty).
+
     "Change Password for Existing Private Key" is optional.
+
     "Generate a New Public/Private key pair" is intended for users without Public/Private key in the initial email containing login credentials.
+
     "Pageant" is optional.
 
 ### PuTTYgen