Updated docs

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docs/objects/Image/loadImage.md

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+## loadImage
+loads a default .nfp file into the object. 
+
+#### Parameters: 
+1. `string` the absolute file path
+
+#### Returns:
+1. `object` The object in use
+
+#### Usage:
+* Creates a default image and loads a test.nfp file
+```lua
+local mainFrame = basalt.createFrame():show()
+local aImage = mainFrame:addImage():loadImage("test.nfp")
+```
+```xml
+<image path="test.nfp" />
+```