core: updated README;

README

@@ -1 +1,47 @@
-1. Build the Debian package: debuild -i -us -uc -b
+Libsxmp: Secure eXtended Message Passing libraries set
+------------------------------------------------------
+
+1. What is that?
+SXMP is a set of libraries designed to be useful for distributed system
+development, instant message services, secure file transfer, and other
+related development where security is important and most of things going
+with message passing.
+
+Actually SXMP contain few libraries:
+- libsxt (Secure eXtended Transport library) used as a transport
+- libsxmp RPC, channels, access restrictions implementation
+- libtdata varios data structures implementation
+- libsexpr a fork of sexpr library used in framework
+- libydaemon a modular system for writing daemons using sxmp as a base
+
+And few tools.
+
+1.1 libsxt (Secure eXtended Transport lib)
+Is a library provide secure transport with quite flexible authentification
+models. The protocol itself is highly influenced by SSH2 protocol,
+but under the security stuff it's going to be different and optimized for
+message passing and streaming data.
+Currently this library under development yet.
+
+1.2 libsxmp itself
+IS a library allowing to implement RPC functions based on S-expressions, but
+also provide security restriction model by channels, streams and authentification.
+Before 0.5.xx this library use TLSv1.2 as a transport.
+
+1.3 libtdata
+Is a small library implement basic data structures as follows (but not limited to):
+ - Redblack trees
+ - AVL trees
+ - Splay trees
+ - Linked lists (inline and not inline implementation)
+ - Index allocation
+
+1.4 libsexpr
+Is a fork of sexpr library, a library to parse and process S-expressions in a fast way.
+There are not so many difference made with original library, but it's still
+new features will came and most of them will be pinned to sxmp features.
+
+1.5 libydaemon
+Is a library (Yet another Daemon library) created to allow fast daemon development
+with a modularity in mind.
+