pages*: make help and version commands comply with the style guide (#12107)

* pages*: use generic word for help

* git: add newline to the end

Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

* pages*: make help and version commands comply with the style guide

* java: fix Java name

---------

Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

pages/linux/flash.md

@@ -7,18 +7,18 @@
 
 `flash`
 
-- Display the program version:
-
-`flash -v`
-
 - Display information about the flashcard system:
 
 `flash -i`
 
-- Display a list of available commands:
-
-`flash -h`
-
 - Change the previewer from default `bat` to `cat`:
 
 `flash -p {{cat}}`
+
+- Display help:
+
+`flash -h`
+
+- Display version:
+
+`flash -v`