update no highlight description

lua/lv-which-key/init.lua

@@ -73,6 +73,7 @@ local mappings = {
     ["c"] = "Close Buffer",
     ["e"] = "Explorer",
     ["f"] = "Find File",
+    ["h"] = "No Highlight",
     d = {
         name = "+Debug",
         b = {"<cmd>DebugToggleBreakpoint<cr>", "Toggle Breakpoint"},