[GLPN] Improve docs (#16331)

* Add link to notebook

* Add link

* Fix bug
Co-authored-by: Niels Rogge <nielsrogge@Nielss-MacBook-Pro.local>

docs/source/model_doc/glpn.mdx

@@ -31,6 +31,7 @@ The abstract from the paper is the following:
 
 Tips:
 
+- A notebook illustrating inference with [`GLPNForDepthEstimation`] can be found [here](https://github.com/NielsRogge/Transformers-Tutorials/blob/master/GLPN/GLPN_inference_(depth_estimation).ipynb).
 - One can use [`GLPNFeatureExtractor`] to prepare images for the model.
 
 <img src="https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/glpn_architecture.jpg"
@@ -38,7 +39,7 @@ alt="drawing" width="600"/>
 
 <small> Summary of the approach. Taken from the <a href="https://arxiv.org/abs/2201.07436" target="_blank">original paper</a>. </small>
 
-This model was contributed by [niels](<https://huggingface.co/nielsr). The original code can be found [here](https://github.com/vinvino02/GLPDepth).
+This model was contributed by [nielsr](https://huggingface.co/nielsr). The original code can be found [here](https://github.com/vinvino02/GLPDepth).
 
 ## GLPNConfig