example readme

examples/readme.txt

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+
+hello - a simple shell application.
+
+S16 and EXEs have a dedicated direct page (256 bytes in this case).
+
+
+fish_nda - a new desk accessory.
+
+NDAs, CDAs, etc don't have a dedicated direct page so we set up space
+for the direct page/pseudo registers on the stack.  However, this means
+that tiny (direct page) variables are not supported.
+
+
+Since the toolbox calling convention is not yet supported, we need 
+to use stubs or inline assembly.
+