docs: update README with new APIs.

README.md

@@ -28,11 +28,25 @@ High-level overview of the API that Detox Copilot exposes:
 init: (config: Config) => void;
 
 /**
- * Resets the Copilot instance.
- * Must be called before each test to ensure a clean state (the Copilot uses the operations history as part of
+ * Checks if the Copilot has been initialized.
+ * @returns True if the Copilot has been initialized, false otherwise.
+ */
+isInitialized: () => boolean;
+
+/**
+ * Start the Copilot instance.
+ * @note Must be called before each flow to ensure a clean state (the Copilot uses the operations history as part of
  * its context).
  */
-reset: () => void;
+start: () => void;
+
+/**
+ * Finalizes the flow and optionally saves temporary cache data to the main cache.
+ * If `isCacheDisabled` is true, the temporary cache will not be saved. False is the default value.
+ * @param isCacheDisabled
+ * @note This must be called after the flow is complete.
+ */
+end: (isCacheDisabled?: boolean) => void;
 
 /**
  * Performs a testing operation or series of testing operations in the app based on the given `steps`.