Added normal quotation mark to list of aliases, removed single quote mark

src/Discord.Net.Commands/CommandServiceConfig.cs

@@ -17,7 +17,7 @@
         public bool ThrowOnError { get; set; } = true;
 
         /// <summary> List of aliases for string parsing </summary>
-        public char[] QuotationMarkAliases { get; set; } = new char[] { '“', '”', '\'', '«', '»', '‹', '›' };
+        public char[] QuotationMarkAliases { get; set; } = new char[] { '\"', '“', '”', '\'', '«', '»', '‹', '›' };
 
         /// <summary> Determines whether extra parameters should be ignored. </summary>
         public bool IgnoreExtraArgs { get; set; } = false;