-Updated readme.txt

Src/Newtonsoft.Json/Linq/JToken.cs

@@ -208,7 +208,9 @@ namespace Newtonsoft.Json.Linq
                             case JTokenType.Constructor:
                                 int index = ((IList<JToken>)current).IndexOf(next);
 
-                                sb.Append("[" + index + "]");
+                                sb.Append("[");
+                                sb.Append(index);
+                                sb.Append("]");
                                 break;
                         }
                     }

Src/Newtonsoft.Json/Utilities/StringUtils.cs

@@ -165,7 +165,7 @@ namespace Newtonsoft.Json.Utilities
 #if !(NETFX_CORE || PORTABLE)
                     lowerCase = char.ToLower(s[i], CultureInfo.InvariantCulture);
 #else
-          lowerCase = char.ToLower(s[i]);
+                    lowerCase = char.ToLower(s[i]);
 #endif
 
                     sb.Append(lowerCase);