Bold the automation layer description in README

Emphasize the importance of the automation layer in the README.

Author: Coolver

README.md

@@ -95,7 +95,8 @@ The MCP server gives your AI IDE a standard way to talk to Home Assistant.
 
 The Agent gives it safe, native access to Home Assistant itself.
 
-Together, they replace fragile SSH-based scripting with a stable, structured and context-efficient automation layer
+**Together, they replace fragile SSH-based scripting with a stable, structured and context-efficient automation layer**
+
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