Align documentation better

I just couldn't stand it...

'I have to sort my books', she cried
With self-indulgent glee
With senseless, narcissistic pride:
'I'm just so OCD'

'How random, guys', I smiled and said
Then left without a peep
And washed my hands until they bled
And cried myself to sleep

Contributes to issue CURA-844.

plugins/VersionUpgrade/VersionUpgrade21to22/__init__.py

@@ -18,7 +18,7 @@ def getMetaData():
             "api": 2
         },
         "version_upgrade": {
-            # From                   To                        Upgrade function
+            # From                     To                      Upgrade function
             ("profile", 1):          ("instance_container", 2, upgrade.upgradeProfile),
             ("machine_instance", 1): ("container_stack", 2,    upgrade.upgradeMachineInstance),
             ("preferences", 1):      ("preferences", 2,        upgrade.upgradePreferences)