Added initial documentation

docs/README.md

@@ -0,0 +1,18 @@
+# Documentation
+
+
+* [Quick start](./quick_start.md)
+* Generating diagrams
+  * [Common options](./common_options.md) 
+  * [Class diagrams](./class_diagrams.md)
+  * [Sequence diagrams](./sequence_diagrams.md)
+  * [Package diagrams](./package_diagrams.md)
+  * [Include diagrams](./include_diagrams.md)
+* [Comment decorators](./comment_decorators.md)
+* [Diagram filters](./diagram_filters.md)
+* [Using Jinja templates](./jinja_templates.md)
+* [Interactive SVG diagrams using links](./interactive_svg_diagrams.md)
+* [Configuration file reference](./configuration_file.md)
+* [Doxygen integration](./doxygen_integration.md)
+* [Test cases documentation](./test_cases.md)
+* [Troubleshooting](./troubleshooting.md)