KG-RAG: Chain of Explorations page

[dsanmart]

I was thinking on creating a PR to add the new method for KG-RAG retrieval called Chain of Explorations (CoE) in the prompting techniques section. Would this be the appropriate place to add it? Also, would it bring value to the guide?

CoE is a novel prompting method to extract information from Knowledge Graphs using LLMs. Ref: https://dsanmart.github.io/KG-RAG/