Updated docs

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docs/objects/Dropdown/editItem.md

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+## editItem
+Edits a item from the dropdown
+
+#### Parameters: 
+1. `number` The index which should be edited
+2. `string` The new item name
+3. `number` the new item background color - optional
+4. `number` The new item text color - optional
+5. `any` New additional information - optional
+
+#### Returns:
+1. `object` The object in use
+
+#### Usage:
+* Creates a default dropdown with 3 entries and edits the second one.
+```lua
+local mainFrame = basalt.createFrame()
+local aDropdown = mainFrame:addDropdown()
+aDropdown:addItem("1. Entry")
+aDropdown:addItem("2. Entry",colors.yellow)
+aDropdown:addItem("3. Entry",colors.yellow,colors.green)
+aDropdown:editItem(2, "Still 2. Entry", colors.red)
+```