Update README.md

README.md

@@ -19,16 +19,16 @@ but SymSpell needs to generate **only 25 deletes** to cover them all, both at pr
 <br>
 
 ```
-Copyright (c) 2020 Wolf Garbe
-Version: 6.7
+Copyright (c) 2021 Wolf Garbe
+Version: 6.7.1
 Author: Wolf Garbe <[email protected]>
 Maintainer: Wolf Garbe <[email protected]>
 URL: https://github.com/wolfgarbe/symspell
 Description: https://medium.com/@wolfgarbe/1000x-faster-spelling-correction-algorithm-2012-8701fcd87a5f
 
 MIT License
 
-Copyright (c) 2020 Wolf Garbe
+Copyright (c) 2021 Wolf Garbe
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated 
 documentation files (the "Software"), to deal in the Software without restriction, including without limitation 
@@ -378,6 +378,12 @@ https://github.com/Archivus/SymSpell
 2. Option to preserve case (upper/lower case) of input term.
 3. Open source the code for creating custom frequency dictionaries in any language and size as intersection between Google Books Ngram data (Provides representative word frequencies) and SCOWL Spell Checker Oriented Word Lists (Ensures genuine English vocabulary).
 
+#### Changes in v6.7.1
+
+1. Framework target changed from net472 to net47<br>
+2. Framework target added netcoreapp3.0<br>
+3. More common contractions added to frequency_dictionary_en_82_765.txt<br>
+
 #### Changes in v6.7
 
 1. WordSegmentation did not work correctly if input string contained words in uppercase.<br>