fixed docs of DesignForInheritance, static methods are now ignored

docs/config_misc.html

@@ -684,7 +684,8 @@ public class StringUtils // not final to allow subclassing
       </p>
 
       <p class="body">
-      The exact rule is that nonprivate methods of classes that can be subclassed must either be
+      The exact rule is that nonprivate, nonstatic methods of classes that
+      can be subclassed must either be
       </p>
       <ul class="body">
       <li>abstract or</li>

src/checkstyle/com/puppycrawl/tools/checkstyle/checks/DesignForInheritanceCheck.java

@@ -33,7 +33,7 @@ import com.puppycrawl.tools.checkstyle.api.ScopeUtils;
  * </p>
  *
  * <p>
- * The exact rule is that nonprivate methods in
+ * The exact rule is that nonprivate, nonstatic methods in
  * nonfinal classes (or classes that do not
  * only have private constructors) must either be
  * <ul>
@@ -53,7 +53,7 @@ import com.puppycrawl.tools.checkstyle.api.ScopeUtils;
  * </p>
  *
  * @author lkuehne
- * @version $Revision: 1.4 $
+ * @version $Revision: 1.5 $
  */
 public class DesignForInheritanceCheck extends Check
 {