Fix markdown formatting in the sustainable AI coding section of README

Author: robertpiosik

README.md

@@ -16,8 +16,7 @@ Code Web Chat (CWC) is a free and open-source, privacy-first **AI coding toolkit
 - chatbots—Gemini, ChatGPT, Claude, etc.
 - APIs—remote and local model providers
 
-**🌱 Sustainable AI coding**
-
+**🌱 Sustainable AI coding** \
 Because context files are part of your instructions, [prompt caching](https://developers.openai.com/api/docs/guides/prompt-caching/) is utilized across tasks. Make your quotas last longer. Reduce input token costs by up to 90% and latency by up to 80%.
 
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