readme file added

Author: ManikandanKurup-Packt

Chapter03/2-basic-rest-services/gradle/wrapper/README.md

@@ -0,0 +1,7 @@
+If you run into any issue while executing ```gradlew build``` on Win 10, try replacing the following in the ```gradle-wrapper.properties``` file:
+
+```distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.4-bin.zip```
+
+To:
+
+```distributionUrl=https\://services.gradle.org/distributions/gradle-6.3-all.zip```