Add Hud Shift readme

DATA/INTERFACE/HudShift_readme.txt

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+				   HUD Shift
+				 by Jason Hood
+
+				 Version 2.12.1
+
+
+HUD Shift is a plugin to reposition items in the HUD.  It can be installed
+either in EXE\dacom.ini:
+
+	[Libraries]
+	...
+	HudShift.dll		; place before jflp.dll
+
+or EXE\freelancer.ini:
+
+	[Initial SP DLLs]
+	...
+	DLL = HudShift.dll
+
+Either use the full path to HudShift.dll, or copy it to EXE (former) or
+DLLS\BIN (latter).  Copy HudShift.ini to DATA\INTERFACE.
+
+Using freelancer.ini, the shifts will be applied every time a game is loaded,
+allowing positions to be changed on the fly.  Conversely, dacom.ini will apply
+the shifts once.  The intention is to use freelancer.ini when experimenting to
+find the right shift, then use dacom.ini once satisfied.  Either location will
+re-apply the shift when the resolution changes, but a game must still be loaded
+in order for the shift to take effect.
+
+The default setting will place items back at the screen edge when using wide-
+screen resolutions.  The position can be fine-tuned, if you'd like it a little
+off the edge, or you can totally rearrange everything.
+
+
+Jason Hood, 4 November, 2021.
+http://freelancer.adoxa.vze.com/