NEWS: fixed markups and formatting [ci skip]

* got rid of inadvertent label lists.
* marked up resolve_feature_path method names.
* fixed indentation of UnboundMethod#bind_call and marked up as
  RDoc.

NEWS

@@ -198,16 +198,16 @@ RubyVM::
 
   Removed method::
 
-    * RubyVM.resolve_feature_path moved to
-      $LOAD_PATH.resolve_feature_path.  [Feature #15903] [Feature #15230]
+    * +RubyVM.resolve_feature_path+ moved to
+      <code>$LOAD_PATH.resolve_feature_path</code>.  [Feature #15903] [Feature #15230]
 
 Symbol::
 
   Modified method::
 
-    * Symbol#to_s now always returns a frozen String. The returned String is
-      always the same for a given Symbol. This change is experimental.
-      [Feature #16150]
+    * Symbol#to_s now always returns a frozen String. The returned String
+      is always the same for a given Symbol.  This change is
+      experimental.  [Feature #16150]
 
 Time::
 
@@ -219,42 +219,43 @@ Time::
 
   Modified method::
 
-    * Time#inspect is separated from Time#to_s and it shows its sub second.
-      [Feature #15958]
+    * Time#inspect is separated from Time#to_s and it shows its sub
+      second.  [Feature #15958]
 
 UnboundMethod::
 
   New methods::
 
     * Added UnboundMethod#bind_call method.  [Feature #15955]
 
-`umethod.bind_call(obj, ...)` is semantically equivalent to
-`umethod.bind(obj).call(...)`.  This idiom is used in some libraries to
-call a method that is overridden.  The added method does the same
-without allocation of intermediate Method object.
-
-    class Foo
-      def add_1(x)
-        x + 1
-      end
-    end
-    class Bar < Foo
-      def add_1(x) # override
-        x + 2
-      end
-    end
-
-    obj = Bar.new
-    p obj.add_1(1) #=> 3
-    p Foo.instance_method(:add_1).bind(obj).call(1) #=> 2
-    p Foo.instance_method(:add_1).bind_call(obj, 1) #=> 2
+      <code>umethod.bind_call(obj, ...)</code> is semantically equivalent
+      to <code>umethod.bind(obj).call(...)</code>.  This idiom is used in
+      some libraries to call a method that is overridden.  The added
+      method does the same without allocation of intermediate Method
+      object.
+
+          class Foo
+            def add_1(x)
+              x + 1
+            end
+          end
+          class Bar < Foo
+            def add_1(x) # override
+              x + 2
+            end
+          end
+
+          obj = Bar.new
+          p obj.add_1(1) #=> 3
+          p Foo.instance_method(:add_1).bind(obj).call(1) #=> 2
+          p Foo.instance_method(:add_1).bind_call(obj, 1) #=> 2
 
 
 $LOAD_PATH::
 
   New method::
 
-    * Added $LOAD_PATH.resolve_feature_path.  [Feature #15903] [Feature #15230]
+    * Added <code>$LOAD_PATH.resolve_feature_path</code>.  [Feature #15903] [Feature #15230]
 
 === Stdlib updates (outstanding ones only)