Update overview.adoc

Author: rstoyanchev

src/docs/asciidoc/overview.adoc

@@ -37,7 +37,7 @@ When you learn about a framework, it’s important to know not only what it does
 * Accommodate diverse perspectives. Spring embraces flexibility and is not opinionated about how things should be done. It supports a wide range of application needs with different perspectives.
 * Maintain strong backward compatibility. Spring’s evolution has been carefully managed to force few breaking changes between versions. Spring supports a carefully chosen range of JDK versions and third-party libraries to facilitate maintenance of applications and libraries that depend on Spring.
 * Care about API design. The Spring team puts a lot of thought and time into making APIs that are intuitive and that hold up across many versions and many years.
-* Set high standards for code quality. The Spring Framework puts a strong emphasis on meaningful, current, and accurate Javadoc. It is one of very few projects that can claim clean code structure with  no circular dependencies between packages. {JB: Find a link to support this claim.}
+* Set high standards for code quality. The Spring Framework puts a strong emphasis on meaningful, current, and accurate Javadoc. It is one of very few projects that can claim clean code structure with  no circular dependencies between packages.
 
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