Update MD006/MD023 to report fixInfo for violations, process input to fixErrors.

lib/md006.js

@@ -13,10 +13,19 @@ module.exports = {
   "tags": [ "bullet", "ul", "indentation" ],
   "function": function MD006(params, onError) {
     flattenedLists().forEach((list) => {
-      if (list.unordered && !list.nesting) {
-        addErrorDetailIf(onError, list.open.lineNumber,
-          0, list.indent, null, null,
-          rangeFromRegExp(list.open.line, listItemMarkerRe));
+      if (list.unordered && !list.nesting && (list.indent !== 0)) {
+        const { lineNumber, line } = list.open;
+        addErrorDetailIf(
+          onError,
+          lineNumber,
+          0,
+          list.indent,
+          null,
+          null,
+          rangeFromRegExp(line, listItemMarkerRe),
+          {
+            "deleteCount": line.length - line.trimLeft().length
+          });
       }
     });
   }