Add Documentation

Author: litefeel

Documentation~/Images/screenshots.png

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+# Align Tools by litefeel  
+https://www.litefeel.com
+
+Twitter: @litefeel  
+Github: https://github.com/litefeel/Unity-AlignTools
+
+_________
+#### What does it do ?
+
+This editor window allows you to easily align ui objects on your scene :
+- align ui objects on all axis or the one you choose
+- align on the left or the right (use renderer extents)
+- distribute objects in equals distances (for position)
+- expand/shrink size of ui by another
+- adjust position of ui by arrow keyboard
+
+____
+#### Usage
+
+1. Open Windows from `Window > LiteFeel > Align Tools`
+2. Select two or more GUI object
+3. Align them
+
+____
+#### Adjust position by keyboard
+
+1. Toggle on `Adjust Position By Keyboard` at `Align Tools Window`
+2. Select one or more ui object
+3. Press the arrow keys (Options Press Shift)
+
+
+#### Screenshots
+
+![](Images/screenshots.png)
+
+
+![](Images/shortcuts.png)