doc(nuget): remove useless code

Author: egbakou

nuget/readme.txt

@@ -1,9 +1,8 @@
-RESTCountries.NET
-
 Find more information at: https://github.com/lioncoding-oss/FileSizeFromBase64.NET
 
 
 ## Usage
 using FileSizeFromBase64.NET;
+
 var sizeInByte =  FileSizeHelpers.GetFileSizeFromBase64String("your-base64-string");
 var sizeInMB = FileSizeHelpers.GetFileSizeFromBase64String("your-base64-string", UnitsOfMeasurement.Mesagebyte);