Flexbox docs

Updated the flexbox documentation for the current flexbox implementation

docs/objects/Flexbox/getWrap.md

@@ -0,0 +1,20 @@
+## getWrap
+
+### Description
+
+Returns the current setting for whether the child objects should wrap onto the next line if there isn't enough room on the main axis within the Flexbox.
+
+### Returns
+
+1. `string` returns `nowrap` or `wrap`
+
+### Usage
+
+* Creates a default Flexbox, sets the wrap, and then retrieves it.
+
+```lua
+local main = basalt.createFrame()
+local flexbox = mainFrame:addFlexbox()
+      :setWrap("wrap")
+local wrapSetting = flexbox:getWrap() -- returns wrap
+```