Add help message for keybinds

lua/symbols-outline/config.lua

@@ -18,7 +18,8 @@ local defaults = {
         hover_symbol = "<C-space>",
         preview_symbol = "K",
         rename_symbol = "r",
-        code_actions = "a"
+        code_actions = "a",
+        show_help = "?",
     },
     lsp_blacklist = {},
     symbol_blacklist = {},
@@ -93,6 +94,11 @@ function M.is_client_blacklisted(client_id)
     return has_value(M.options.lsp_blacklist, client.name)
 end
 
+function M.show_help()
+    print "Current keymaps:"
+    print(vim.inspect(M.options.keymaps))
+end
+
 function M.setup(options)
     M.options = vim.tbl_deep_extend("force", {}, defaults, options or {})
 end