Update DESCRIPTION.md

Author: tbm98

DESCRIPTION.md

@@ -1,6 +1,6 @@
-This plugin help you to write generator's template quickly
+This plugin helps you to write a generator's template quickly
 
-Current it support Freezed, JsonSerializable
+Current it supports Freezed, JsonSerializable
 
 Freezed
 
@@ -12,4 +12,4 @@ json-outside
 
 json-inside
 
-<img width="400" src="https://gist.githubusercontent.com/tbm98/3726c42cf2c06f70d44606070eb1bf8d/raw/1286b354e0236833191998970e5988891b5451e8/json-inside.png" alt="Freezed">
+<img width="400" src="https://gist.githubusercontent.com/tbm98/3726c42cf2c06f70d44606070eb1bf8d/raw/1286b354e0236833191998970e5988891b5451e8/json-inside.png" alt="Freezed">