Updated Textfield (markdown)

Textfield.md

@@ -1 +1,13 @@
-WIP
+Textfields are objects, where the user can write something on multiple lines. it act's like the default edit script (without coloring)<br>
+Here is a example of how to create a default textfield:
+
+````lua
+local mainFrame = CreateFrame("myFirstFrame"):show()
+local aTextfield = mainFrame:addTextfield("myFirstTextfield"):show()
+````
+
+This will create a default input with the size 10 width and 4 height on position 1 1 (relative to its parent frame), the default background is colors.gray, the default text color is colors.black and the default zIndex is 5.
+
+Here are all possible functions available for textfields. Remember textfield inherit from [object](https://github.com/NoryiE/NyoUI/wiki/Object):
+
+There are currently no customizable functions, maybe i will add some in the future