added documentation to read me.

README.md

@@ -47,6 +47,47 @@ s	= shortens the names displayed
 c	= hides/shows hidden processes
 
 p	= saves to file called "Profile" and opens directory for you
+## To redefine these:
+To redefine only one of the keys:
+	```lua
+		piefiller:setKey(mode,key)
+	```
+	example:
+	```lua
+		piefiller:setKey("increase_depth","up")
+	```
+To redefine all of the keys:
+	```lua
+	
+	table = {
+		"increase_depth" = "up"
+	}
+	piefiller:setKey(table)
+	
+	```
+# For your own interpretation 
+	If you wish to interpret the data on your own use piefiller:unpack().
+	Output is a table as such:
+	```lua
+		local data = {
+			items = { 
+				{ 
+					name,
+					line_defined, 
+					current_line,
+					source,
+					time_taken, 
+					percentage,
+					caller,
+				}
+			}, 
+			about = {
+				depth,
+				step, 
+				totalTime,
+			}, 
+		} 
+	```
 # Additional notes
 The best depth to search for is 2 and 3.