Fix readme description (#101)

Author: stas-fomenko

CHANGELOG.md

@@ -1,12 +1,7 @@
 ## 3.0.0 (June 25, 2021)
 * Deleted old action: `Read CSV file from URL`
 * Deleted old trigger: `Read CSV attachment`
-* New action renamed: from `Read CSV file from URL v2` to `Read CSV attachment`
-* Fixed memory leak on big CSV files
-
-## 2.3.0-dev.1 (June 16, 2021)
-* Add action: `Read CSV file from URL v2`
-* Add trigger: `Read CSV attachment v2`
+* Add New action: `Read CSV attachment`
 
 ## 2.2.0 (April 23, 2021)
 * Add pipe to list of separators in `Write CSV attachment from JSON Array` and `Write CSV attachment from JSON Object` actions