fix(README): Added a description of the usage and checks that can be performed using the inspector lib.

Author: MelchiorSchuh

README.md

@@ -43,8 +43,50 @@ Go check out the online documentation at [docs.geode-solutions.com].
 Installing OpenGeode-Inspector is done:
 
  * either by compiling the C++ source.
- * or by using the pip command ```pip install opengeode-inspector``` and adding ```import opengeode_inspector``` in your Python script. Check [this documentation page](https://docs.geode-solutions.com/how-to-use-binding) for more details. Examples are also procured in the ```examples``` folder.
-
+ * or by installing the python library using the pip command ```pip install opengeode-inspector```.
+
+## Usage
+
+To use OpenGeode-Inspector, several options are available:
+
+ * If you installed and compiled the C++ source code, you can use the executable binaries to apply an inspection of your meshes/models and toggle on/off the various checks directly.
+ * or use the API functions (check the tests to see how it is done) if you want to go further or use the resulting errors to repair your meshes/models.
+ * If you installed the python library, you can add ```import opengeode_inspector``` in your Python script to use the available API functions. Check [this documentation page](https://docs.geode-solutions.com/how-to-use-binding) for more details. Examples are also procured in the ```examples``` folder.
+ * You can inspect your models without any installation, by using the API of the [Geode-solutions free tools](https://geode-solutions.com/tools).
+
+The available checks for each mesh type are:
+ * PointSet:
+   * Colocation of vertices
+ * EdgedCurve:
+   * Colocation of vertices
+   * Degeneration of edges
+ * SurfaceMesh:
+   * Adjacency of polygons
+   * Colocation of vertices
+   * Degeneration of edges
+   * Degeneration of polygons
+   * Intersection of triangles (for triangulated surfaces)
+   * Manifold of vertices
+   * Manifold of edges
+ * SolidMesh:
+   * Adjacency of polyhedra
+   * Colocation of vertices
+   * Degeneration of edges
+   * Degeneration of polyhedra
+   * Manifold of vertices
+   * Manifold of edges
+   * Manifold of facets
+The available checks for each model type are:
+ * Section:
+   * Validity of the topology
+   * Checks on each component mesh: all the previous mesh checks depending on the component mesh type
+   * Checks on the validity of the unique vertices (linking to vertices, colocation of unique vertices points, un-colocation of points with same unique vertices)
+   * Intersection of the component mesh surfaces between each other
+ * BRep:
+   * Validity of the topology
+   * Checks on each component mesh: all the previous mesh checks depending on the component mesh type
+   * Checks on the validity of the unique vertices (linking to vertices, colocation of unique vertices points, un-colocation of points with same unique vertices)
+   * Intersection of the component mesh surfaces between each other
 
 ## Questions
 For questions and support please use the official [slack](https://slackin-opengeode.herokuapp.com) and go to the channel #inspector. The issue list of this repo is exclusively for bug reports and feature requests.