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+HALIBUT Readme
+==============
+
+This version of Halibut has been adapted to the needs of the XTrkCad
+Project. It is based on version 1 of Halibut.
+
+The original version is available at:
+
+http://www.chiark.greenend.org.uk/~sgtatham/halibut/
+
+This site also has the full documentation.
+
+XTrkCad Modifications
+---------------------
+
+The following changes have been made:
+
+1. Backends - only the HTML backend is included
+
+2. \f: Emphasize more
+ This formating instruction is similar to the \e. It is usually rendered
+ as bold on HTML
+
+ Example: Here is some \f{bold text}.
+
+ Nesting of \e and \f is unsupported.
+
+3 \G: Include graphic
+ This instruction is used to include bitmaps into the document. Note that
+ there are no checks for presence of the file nor whether its a valid
+ graphics format.
+
+ \G just takes the filename as a parameter.
+
+ Example: Include a bitmap here \G{png.d/bitmap.png}.
+