docs: README update (#74)

README.md

@@ -10,15 +10,20 @@ Installation instructions to follow, but as usual with package managers
 ```lua
 return {
     "tris203/hawtkeys.nvim",
-    config = true,
+    dependencies = { "nvim-lua/plenary.nvim" },
+    config = {
+        -- an empty table will work for default config
+        --- if you use functions, or whichky, or lazy to map keys
+        --- then please see the API below for options
+    },
 }
 ```
 
 ## ❔Usage
 
 ### Searching New Keymaps
 
-There are two interfaces to hawtkeys, the first allows you to Search For Keymaps:
+There are three interfaces to hawtkeys, the first allows you to Search For Keymaps:
 
 ```
 :Hawtkeys