hangman: add page (#23333)

Co-authored-by: Ivan Baluta <ivanbaluta.dev@gmail.com>

pages/common/hangman.md

@@ -0,0 +1,28 @@
+# hangman
+
+> Play the classic Hangman word-guessing game.
+> More information: <https://manned.org/man/hangman>.
+
+- Start the game:
+
+`hangman`
+
+- Guess a letter:
+
+`{{<a>|<b>|<c>|...}}`
+
+- Move to the next word:
+
+`<Space>`
+
+- Quit the game:
+
+`<Enter>`
+
+- Start the game with a specific minimum word length (default is 6):
+
+`hangman -m {{min_length}}`
+
+- Start the game with a specific word list:
+
+`hangman -d {{path/to/word_list}}`