diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -56,3 +56,7 @@
 
 * Fifth version. Added "w" and "x" lines of the properties that uses more complex rhythmicity structures and
 other properties. Changed the dependencise boundaries accordingly.
+
+## 0.5.0.1 -- 2021-07-21
+
+* Fifth version revised A. Fixed an issue with incomplete documentation addition to the README.md file.
diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -73,4 +73,7 @@
  "w" and "x" Series of properties
  ================================
 
-Since the  
+Since the 0.5.0.0 version you can use also "w" and "x" series (lines) of properties. They use more complex
+approach and are intended for 4 elements in the rhythmic groups. For more information, please, refer to the
+section 'WX argument' in the English instruction:
+https://web.archive.org/web/20210720181838/https://oleksandrzhabenko.github.io/uk/Eng-Ukrainian_as_a_Phonetic_Language_Instructions-0.5.0.0.pdf
diff --git a/phonetic-languages-simplified-generalized-examples-array.cabal b/phonetic-languages-simplified-generalized-examples-array.cabal
--- a/phonetic-languages-simplified-generalized-examples-array.cabal
+++ b/phonetic-languages-simplified-generalized-examples-array.cabal
@@ -3,7 +3,7 @@
 -- http://haskell.org/cabal/users-guide/
 
 name:                phonetic-languages-simplified-generalized-examples-array
-version:             0.5.0.0
+version:             0.5.0.1
 synopsis:            Helps to create texts with the given phonetic properties (e. g. poetic).
 description:         Is rewritten from the modules of the @phonetic-languages-simplified-examples-array@ package. Can be used not only for Ukrainian, but also for other languages. 
 homepage:            https://hackage.haskell.org/package/phonetic-languages-simplified-generalized-examples-array