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/copyq.md

@@ -25,8 +25,8 @@
 
 - Copy a file's contents into the clipboard:
 
-`copyq copy < {{file.txt}}`
+`copyq copy < {{path/to/file.txt}}`
 
 - Copy a JPEG image into the clipboard:
 
-`copyq copy image/jpeg < {{image.jpg}}`
+`copyq copy image/jpeg < {{path/to/image.jpg}}`