Correct TIP typo in the documentation

Closes gh-14735

spring-boot-project/spring-boot-docs/src/main/asciidoc/spring-boot-features.adoc

@@ -6431,7 +6431,7 @@ NOTE: While Spring's test framework caches application contexts between tests an
 a context for tests sharing the same configuration, the use of `@MockBean` or `@SpyBean`
 influences the cache key, which will most likely increase the number of contexts.
 
-PTIP: If you are using `@SpyBean` to spy on a bean with `@Cacheable` methods that refer
+TIP: If you are using `@SpyBean` to spy on a bean with `@Cacheable` methods that refer
 to parameters by name, your application must be compiled with `-parameters`. This
 ensures that the parameter names are available to the caching infrastructure once the
 bean has been spied upon.