Update README.md

Author: johnvicinno

README.md

@@ -17,11 +17,12 @@ CodeNext is an Xcode Source Editor Extension that supports LLMs from OpenAI, Ope
 
 ## Installation and Setup
 
-1. Unzip CodeNext.zip and drag CodeNext.app into the Applications folder.
+1. Double CodeNextInstaller.dmg and drag CodeNext.app into the Applications folder.
 2. Run CodeNext.app from Applications folder to set up.
 3. As promoted, enable the source editor extension in MacOS system settings -> Privacy & Security -> Extensions -> Xcode Source Editor.
 4. Grant Accessibility API permission to the CodeNext extension app in MacOS system settings -> Privacy & Security -> Accessibility .
 5. Follow onboarding flow to set up AI modes for autocompletion and chat.
+6. Close the setting window and star using autocomplete in Xcode. By default, autocomplete is enabled. To use chat, click </> logo on top Mac menu bar or in the right corner of Xcode editor to open chat.
 
 ## Recommended Autocomplete models
 **Codestral latest** from *Mistral* is the best coding model, or locally **Qwen2.5-Coder 1.5B** with *Ollama*.