feat(zsh): add auto complete for cht.sh

zsh/_cht

@@ -0,0 +1,21 @@
+#compdef cht.sh
+
+__CHTSH_LANGS=($(curl -s cheat.sh/:list))
+_arguments -C \
+  '--help[show this help message and exit]: :->noargs' \
+  '--shell[enter shell repl]: :->noargs' \
+  '1:Cheat Sheet:->lang' \
+  '*::: :->noargs' && return 0
+
+if [[ CURRENT -ge 1 ]]; then
+    case $state in
+        noargs)
+             _message "nothing to complete";;
+        lang)
+             compadd -X "Cheat Sheets" ${__CHTSH_LANGS[@]};;
+        *)
+             _message "Unknown state, error in autocomplete";;
+    esac
+
+    return
+fi