Update docs/backend/upgrading/version-specific-migration/upgrade-to-60.md

Author: stevepiercy

docs/backend/upgrading/version-specific-migration/upgrade-to-60.md

@@ -610,7 +610,7 @@ This is because some viewlet names contained the name of a viewlet manager.
 This didn't always match the name of their actual viewlet manager, especially after moving them.
 Plone 6.0 removes such references from the viewlet names to avoid confusion.
 
-- Plone 6.0 removes the `plone.documentactions (IDocumentActions)`  viewlet manager. In Plone 5.2 it was already empty.
+- Plone 6.0 removes the `plone.documentactions (IDocumentActions)` viewlet manager. In Plone 5.2 it was already empty.
 - Plone 6.0 adds the `plone.belowcontentdescription (IBelowContentDescription)` viewlet manager. By default this has no viewlets.
 - Plone 6.0 removes the `plone.header` viewlet from `plone.portaltop` manager, making it empty.
 - Plone 6.0 renames the `plone.abovecontenttitle.documentactions` viewlet to `plone.documentactions` and moves it from manager `plone.belowcontentbody` to `plone.belowcontent`.