upadted the readme file

Author: UnnamedMoose

README

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+Welcome to this set of OpenFOAM® programming tutorials!
+
+These are intented to provide a beginner C++ programmer with hands-on examples of
+how to develop code within the OpenFOAM® framework. These tutorials hope to be more
+approachable than most of the materials available on-line, which tend to assume
+that the user is proficient in the C++ programming language. Please see below for
+a brief summary of what each individual tutorial covers and how to use it.
+
+Disclaimer: this offering is not approved or endorsed by OpenCFD Limited, producer
+and distributor of the OpenFOAM software via www.openfoam.com, and owner of the
+OPENFOAM® and OpenCFD® trade marks.
+
+Enjoy and please provide me with feedback to make these tutorials more useful!
+Contributions from the community are also more than welcome!
+
+---------
 Tutorial 0 - Hello world
 
     Presents a basic OpenFOAM executable which prints a simple, yet important,