pages*: fix small typos (#11850)

* pages*: fix small typos

* pages/*: make help and version commands consistent

* pages/*: follow "path/to/file" pattern

* nop: generic display help wording

pages/common/hub-issue.md

@@ -5,7 +5,7 @@
 
 - List the last 10 issues with the `bug` label:
 
-`hub issue list --limit {{10}} --labels "{{bug}}" `
+`hub issue list --limit {{10}} --labels "{{bug}}"`
 
 - Display a specific issue: