doc: update README.md

Signed-off-by: Yu Fan <[email protected]>

examples/cloud-edge-collaborative-inference-for-llm/README.md

@@ -292,7 +292,7 @@ This example builds an architecture for testing query routing strategies, but th
 
 Besides, Speculative Decoding is another promising cloud-edge collaborative inference strategy, we should also implement it.
 
-Thus, the future of this example is:
+Thus, the future tasks of this example include:
 
 - Build a more comprehensive dataset for better router evaluation
 - Implement a Speculative Decoding example