Update README

Author: AntonKozlov

README.md

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 # example-spring-boot
 
+This is an example of Spring Boot [Getting Started](https://github.com/spring-guides/gs-spring-boot/tree/c42d4edfec8e704431380b884f5cfed78f17e876/initial) modified to work on OpenJDK CRaC.
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+Changes: https://github.com/CRaC/example-spring-boot/compare/base..crac
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 ## Building
 
 Use maven to build