Update README.md

Author: ryuuzaki42

README.md

@@ -2,7 +2,7 @@
 # MasterPDFEditor.AppImage
 
 ## Repository: https://github.com/ryuuzaki42/MasterPDFEditor_AppImage
-    MasterPDFEditor: 5.9.89
+    MasterPDFEditor: 5.9.90
 
 This is version 5, which saves with a watermark from the trial version.