added small README file

README.md

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+Summary
+==============
+A small wrapper library around the popular LibLinear toolbox to make parsing of arguments a little easier.
+
+Requirements / Dependencies
+==============
+* A compiled version of Liblinear. (tested with 1.9.3 and 2.1.2)
+* The source code was developed in Matlab 7.14 and 8.2
+
+Installation
+==============
+* setup required paths and 3rd-party dependencies via `initWorkspaceLibLinear.m` (if liblinear  is not found on your system, a possible code mirror is suggested)