Polishing.

Fix Javadoc tags.

See #2994

src/main/java/org/springframework/data/redis/cache/RedisCacheConfiguration.java

@@ -436,7 +436,6 @@ public class RedisCacheConfiguration {
 	 * Registers default cache {@link Converter key converters}.
 	 * <p>
 	 * The following converters get registered:
-	 * <p>
 	 * <ul>
 	 * <li>{@link String} to {@link byte byte[]} using UTF-8 encoding.</li>
 	 * <li>{@link SimpleKey} to {@link String}</li>

src/main/java/org/springframework/data/redis/hash/Jackson2HashMapper.java

@@ -65,7 +65,6 @@ import com.fasterxml.jackson.databind.ser.std.DateSerializer;
  * Flattening requires all property names to not interfere with JSON paths. Using dots or brackets in map keys or as
  * property names is not supported using flattening. The resulting hash cannot be mapped back into an Object.
  * <h3>Example</h3>
- * <p>
  * <pre class="code">
  * class Person {
  * 	String firstname;