add conclusion

self-help/atomic-habits/README.md

@@ -1269,3 +1269,10 @@ To fix things, focus on the important aspects of the identity vs the specific ro
 When chosen well, identity can be flexible rather than brittle.
 
 In summary, lack of self-awareness is poison. The antidote is reflection and review.
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+# Conclusion
+A single atomic habit doesn't change a life. But stacking a thousand of them will.
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+Focus on 1% improvements over a long period of time.
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+It's a never-ending treadmill of improving yourself. Small habits don't add up, they compound.