use updated link for intellij-idea plugin

Author: sousarka

CONTRIBUTING.adoc

@@ -96,7 +96,7 @@ completed, a pop-up will suggest to open the project.
 If you haven't done so, install the formatter plugin so that proper formatting rules are
 applied automatically when you reformat code in the IDE.
 
-* Download the latest https://search.maven.org/search?q=g:io.spring.javaformat%20AND%20a:spring-javaformat-intellij-plugin[IntelliJ IDEA plugin].
+* Download the latest https://search.maven.org/search?q=g:io.spring.javaformat%20AND%20a:spring-javaformat-intellij-idea-plugin[IntelliJ IDEA plugin].
 * Select "`IntelliJ IDEA`" -> "`Preferences`".
 * Select "`Plugins`".
 * Select the wheel and "`Install Plugin from Disk...`".