DOC: Fix typos

Change-Id: I912cfb2683e46ba8cc60b29ee5ffa77d44083c47
Merge topic 'fix-typos' into next

168ec90 DOC: Fix typos
Fix button name in pqFixStateFilenamesDialog

Change-Id: I930d0fa1b10b5d555f4b285a3a3064061b510211
Merge topic '11572-fix-state-button-name' into next

0129d1c Fix button name in pqFixStateFilenamesDialog