Add API accessible description key to HF templates (#18)

* Ref #15, with explanation of utility for API-using apps

---------

Co-authored-by: Hilmar Lapp <[email protected]>

Author: egrace479

docs/wiki-guide/HF_DatasetCard_Template_ABC.md

@@ -10,6 +10,7 @@ tags:
 - animals
 - CV
 size_categories: # ex: n<1K, 1K<n<10K, 10K<n<100K, 100K<n<1M, ...
+description: # Add a short description (summary) of your dataset, this will render as part of the CardData object through the API
 ---
 
 <!--

docs/wiki-guide/HF_DatasetCard_Template_Imageomics.md

@@ -10,6 +10,7 @@ tags:
 - animals
 - CV
 size_categories: # ex: n<1K, 1K<n<10K, 10K<n<100K, 100K<n<1M, ...
+description: # Add a short description (summary) of your dataset, this will render as part of the CardData object through the API, which can thus be used in applications such as the Imageomics Catalog
 ---
 
 <!--

docs/wiki-guide/HF_ModelCard_Template_ABC.md

@@ -10,6 +10,7 @@ tags:
 - animals
 datasets: # Adds link if on HF & shows up on sidebar. Ex: Imageomics/TreeOfLife-10M
 metrics: # key list: https://hf.co/metrics
+model_description: # Add a short description (summary) of your model, this will render as part of the CardData object through the API
 ---
 
 <!--

docs/wiki-guide/HF_ModelCard_Template_Imageomics.md

@@ -10,6 +10,7 @@ tags:
 - animals
 datasets: # Adds link if on HF & shows up on sidebar. Ex: imageomics/TreeOfLife-10M
 metrics: # key list: https://hf.co/metrics
+model_description: # Add a short description (summary) of your model, this will render as part of the CardData object through the API, which can thus be used in applications such as the Imageomics Catalog
 ---
 
 <!--