add content to stub page about OntoGPT (#464)

* add content to stub page about OntoGPT

* Update docs/tutorial/ontogpt.md

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Co-authored-by: Nico Matentzoglu <nicolas.matentzoglu@gmail.com>

docs/tutorial/ontogpt.md

@@ -1,4 +1,16 @@
 # Using OntoGPT to boost ontology curation
 
-- Tool: https://github.com/monarch-initiative/ontogpt
-- Preprint: https://arxiv.org/abs/2304.02711
+OntoGPT is a Python package for extracting structured information from text with large language models (LLMs), instruction prompts, and ontology-based grounding.
+Two different strategies for knowledge extraction are currently implemented in OntoGPT:
+- SPIRES: A Zero-shot learning (ZSL) approach to extracting nested semantic structures from text
+- TALISMAN (previously known as SPINDOCTOR): Summarizes gene set descriptions (pseudo gene-set enrichment)
+
+More info about OntoGPT:
+- Documentation: <https://monarch-initiative.github.io/ontogpt/>
+- Source: <https://github.com/monarch-initiative/ontogpt>
+- Preprints:
+  - Caufield JH, Hegde H, Emonet V, Harris NL, Joachimiak MP, Matentzoglu N, et al. Structured prompt interrogation and recursive extraction of semantics (SPIRES): A method for populating knowledge bases using zero-shot learning. <http://arxiv.org/abs/2304.02711>
+  - Joachimiak MP, Caufield JH, Harris NL, Kim H, Mungall CJ. Gene Set Summarization using Large Language Models. <http://arxiv.org/abs/2305.13338>
+
+We are also working on a curation-specific tool, [CurateGPT](https://github.com/monarch-initiative/curate-gpt),
+a prototype web application and framework for performing general purpose AI-guided curation and curation-related operations over collections of objects.