docs: document REASONING_SUMMARY env flag#2290

Koushik-Salammagari wants to merge 1 commit into

huggingface:mainhuggingface/chat-ui:mainfrom

Koushik-Salammagari:docs/document-reasoning-summary-envKoushik-Salammagari/chat-ui:docs/document-reasoning-summary-envCopy head branch name to clipboard