docs: 📝 Update README to clarify the role of memory in AI Agents

Author: indcoder

01-intro-to-ai-agents/README.md

@@ -48,7 +48,7 @@ Let's break this definition into smaller parts:
 
 **Access To Tools** - What tools the LLM has access to is defined by 1) the environment it's operating in and 2) the developer of the AI Agent. For our travel agent example, the agent's tools are limited by the operations available in the booking system, and/or the developer can limit the agent's tool access to flights.
 
-**Knowledge** - Outside of the information provided by the environment, AI Agents can also retrieve knowledge from other systems, services, tools, and even other agents. In the travel agent example, this knowledge could be the information on the user's travel preferences located in a customer database.
+**Memory+Knowledge** - Memory can be short-term in the context of the conversation between the user and the agent. Long-term, outside of the information provided by the environment, AI Agents can also retrieve knowledge from other systems, services, tools, and even other agents. In the travel agent example, this knowledge could be the information on the user's travel preferences located in a customer database.
 
 ### The different types of agents