added 1st section to README

I added an "ABOUT" section to README and updated the rest a tiny bit.

README.md

@@ -1,9 +1,30 @@
+<img src="src/Resources/images/gc.png" height="25%" width="25%">
+
+# GoldenCheetah
+
+## About 
+
+GoldenCheetah is an open-source data analysis tool primarily written in C++
+with Qt for cyclists and triathletes 
+with support for training as well. 
+
+GoldenCheetah can connect with indoor trainers and cycling equipment such 
+as cycling computers and power meters to import data. 
+
+In addition, GoldenCheetah can connect to cloud services. 
+
+It can then manipulate and view the data, as well as analyze it.
+
+
+
+## Installing 
+
 Golden Cheetah install and build instructions are documented
 for each platform;
 
 INSTALL-WIN32   For building on Microsoft Windows
 
-INSTALL-LINUX   For building on Ubuntu Linux
+INSTALL-LINUX   For building on Linux
 
 INSTALL-MAC     For building on Apple OS X
 
@@ -14,6 +35,6 @@ Windows: [![Build status](https://ci.appveyor.com/api/projects/status/i6dwn4m8oy
 
 [![Coverity Status](https://scan.coverity.com/projects/7503/badge.svg)](https://scan.coverity.com/projects/goldencheetah-goldencheetah)
 
-Alternatively official builds are available from http://www.goldencheetah.org
+Alternatively, official builds are available from http://www.goldencheetah.org
 
-whilst latest developer builds are available from https://github.com/GoldenCheetah/GoldenCheetah/releases
+whilst the latest developer builds are available from https://github.com/GoldenCheetah/GoldenCheetah/releases