formatting of Spaces section of README

README.md

@@ -21,12 +21,31 @@ The Hugging Face Hub is the primary place for sharing machine learning models, d
 The `Librarian Bots` organization is an effort by Hugging Face's [Machine Learning Librarian](https://huggingface.co/davanstrien) to use machine learning to enhance metadata and documentation for material shared on the Hub with the ultimate goal of making it easier for people (and bots!) to find what they are looking for on the Hub. This organization is used to share datasets, models, and Spaces which help achieve this goal. 
 
 ## 👾 Spaces
-- [🤖 Librarian Bot Metadata Request Service 🤖](https://huggingface.co/spaces/librarian-bots/metadata_request_service): With a few clicks, enrich your Hugging Face models with key metadata!
-- [Dataset-to-Model Monitor](https://huggingface.co/spaces/librarian-bots/dataset-to-model-monitor): track datasets hosted on the Hugging Face Hub and get a notification when new models are trained on the dataset you are tracking.
-- [Base Model Explorer](https://huggingface.co/spaces/librarian-bots/base_model_explorer): This Space allows you to find children models for a given base model and view the popularity of models for fine-tuning.
-- [MetaRefine](https://huggingface.co/spaces/librarian-bots/MetaRefine): refine Hub search results by metadata quality and model card length. 
+
+<details>
+  <summary>📚 Spaces Related to Hugging Face Papers</summary>
+  
+  - [Recommend Similar Papers](https://huggingface.co/spaces/librarian-bots/recommend_similar_papers): a Space that allows you to find papers similar to a given paper.
+  - [Collections Reading List Generator](https://huggingface.co/spaces/librarian-bots/collection-reading-list-generator): a Space that allows you to generate a reading list for a given Hugging Face Collection
+  - [📄🔗: Extract linked papers from a Hugging Face Collection](https://huggingface.co/spaces/librarian-bots/collection_papers_extractor): extract all the papers associated with items in a Hugging Face Collection.
+  - [📃 Hugging Face Paper Claimer 📃](https://huggingface.co/spaces/librarian-bots/claim-papers): a space that helps you to claim papers you authored on the Hugging Face Hub.
+  </details>
+
+<details>
+  <summary> Spaces related to metadata </summary>
+ 
+  - [🤖 Librarian Bot Metadata Request Service 🤖](https://huggingface.co/spaces/librarian-bots/metadata_request_service): With a few clicks, enrich your Hugging Face models with key metadata!
+ - [MetaRefine](https://huggingface.co/spaces/librarian-bots/MetaRefine): refine Hub search results by metadata quality and model card length. 
 - [metadata explorer](https://huggingface.co/spaces/librarian-bots/metadata_explorer): a space for exploring high-level information about the metadata associated with models hosted on the Hugging Face Hub.
-- [Hugging Face Datasets Semantic Search](https://huggingface.co/spaces/librarian-bots/huggingface-datasets-semantic-search): a Space that allows you to use semantic search to find relevant datasets on the Hugging Face Hub. 
+
+</details>
+
+<details>
+  <summary> Spaces for exploring and keeping track of repositories on the Hub </summary>
+  
+  - [Dataset-to-Model Monitor](https://huggingface.co/spaces/librarian-bots/dataset-to-model-monitor): track datasets hosted on the Hugging Face Hub and get a notification when new models are trained on the dataset you are tracking.
+  - [Base Model Explorer](https://huggingface.co/spaces/librarian-bots/base_model_explorer): This Space allows you to find children's models for a given base model and view the popularity of models for fine-tuning.
+  - [Hugging Face Datasets Semantic Search](https://huggingface.co/spaces/librarian-bots/huggingface-datasets-semantic-search): a Space that allows you to use semantic search to find relevant datasets on the Hugging Face Hub. 
  
 ## &#x1F4BD; Datasets