Bring a better introduction here

README.md

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 # bibliotecha-install
 
-The script to install Bibliotecha.
+Based on the experiences of seeing Bibliotecha being used in the wild, we have seen that there is a great benefit to setting up the offline library manually, with some friends. Regardless of technical experience, if you can do-it-with-others and the manual is in hand, it is possible to learn a lot and have your library working in the end.
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+On the other hand, there is also a great benefit to have an automatic installation. For the ones who will not have such time for whatever reasons. This greater flexibility allows to see Bibliotecha in use in different context. A potential for more temporary and roaming installations!
+
+With all this in mind, we have worked to prepare an installation script which can be run from the command-line interface.
 
 > https://install.bibliotecha.info