8295025: (bf) ByteBuffer "Access to binary data" section suggests putFloat is void

Reviewed-by: alanb

Author: Brian Burkhalter

src/java.base/share/classes/java/nio/X-Buffer.java.template

@@ -150,10 +150,11 @@ import jdk.internal.util.ArraysSupport;
  * values, for example, this class defines:
  *
  * <blockquote><pre>
- * float  {@link #getFloat()}
- * float  {@link #getFloat(int) getFloat(int index)}
- *  void  {@link #putFloat(float) putFloat(float f)}
- *  void  {@link #putFloat(int,float) putFloat(int index, float f)}</pre></blockquote>
+ * float      {@link #getFloat()}
+ * float      {@link #getFloat(int) getFloat(int index)}
+ * ByteBuffer {@link #putFloat(float) putFloat(float f)}
+ * ByteBuffer {@link #putFloat(int,float) putFloat(int index, float f)}
+ * </pre></blockquote>
  *
  * <p> Corresponding methods are defined for the types {@code char,
  * short, int, long}, and {@code double}.  The index