* README.md (Installation and Usage): Add information that autogen.sh
should be launched first if building from the development repository.
The configuration and build scripts for this package were generated by
Automake/Autoconf. "./configure; make; sudo make install" in this
directory should work. For a more customized build, see the output of
-"./configure --help".
+"./configure --help". To build it from the development repository,
+"./autogen.sh" should be executed first.
Note that much of the content of this library is in the header files.
However, two small libraries are built and installed: