dianna package: eXplainable AI for ONNX models (XAI4ONNX) (#291)

* Update README.md

Added link to the dianna (XAI for ONNX models) overview tutorial.

Signed-off-by: Elena Ranguelova <E.Ranguelova@esciencecenter.nl>
Signed-off-by: elboyran <e.ranguelova@esciencecenter.nl>

* added the overview tutorial for the dianna package: eXplaianble AI for ONNX models

Signed-off-by: elboyran <e.ranguelova@esciencecenter.nl>

* fixing url links; removing logos with insecure links

Signed-off-by: Ranguelova Elena <E.Ranguelova@esciencecenter.nl>

* removing insecure URLs

Signed-off-by: Ranguelova Elena <E.Ranguelova@esciencecenter.nl>

---------

Signed-off-by: Elena Ranguelova <E.Ranguelova@esciencecenter.nl>
Signed-off-by: elboyran <e.ranguelova@esciencecenter.nl>
Signed-off-by: Ranguelova Elena <E.Ranguelova@esciencecenter.nl>

Author: elboyran

README.md

@@ -105,7 +105,9 @@ Tutorials demonstrating how to use ONNX in practice for varied scenarios across
 * [Float16 <-> Float32 converter](https://github.com/onnx/onnx-docker/blob/master/onnx-ecosystem/converter_scripts/float32_float16_onnx.ipynb)
 * [Version conversion](tutorials/VersionConversion.md)
 
-
+## Application of ONNX
+* [Explainable AI for ONNX models](tutorials/XAI4ONNX_dianna_overview.ipynb)
+  
 ## Contributing
 
 We welcome improvements to the convertor tools and contributions of new ONNX bindings. Check out [contributor guide](https://github.com/onnx/onnx/blob/main/CONTRIBUTING.md) to get started.