restore auto/..

auto/README.md

+#### Directory auto/
+
+This directory contains files that are automatically
+generated by tools other than CMake, Make, and the compiler.
+
+They are distributed as part of the source archive. A user
+who just wants to compile BornAgain should consider the
+contents of this directory as part of the source.
+
+A developer, on the other hand, will sooner or later need
+to regenerate some or all sources contained in this directory.
+For this, use the command top-level cmake command with option
+`-DAUTOGENERATE=ON`, or with more specific options like
+`-DBORNAGAIN_GENERATE_BINDINGS=ON`.
+
+Contents of this directory:
+
+`Doc/man`
+: Unix man page in troff format, generated by pod2man.
+
+`Wrap`
+: Python wrapper, generated by Doxygen and Swig.