[#1346] improvement : Add badges (#1356)

What changes were proposed in this pull request?
 Add badges to README file

Why are the changes needed?
 Fix: #1346 

Does this PR introduce any user-facing change?
 No

How was this patch tested?
 No need.

README.md

@@ -7,6 +7,11 @@
 
 [![GitHub Actions Build](https://github.com/datastrato/gravitino/actions/workflows/build.yml/badge.svg)](https://github.com/datastrato/gravitino/actions/workflows/build.yml)
 [![GitHub Actions Integration Test](https://github.com/datastrato/gravitino/actions/workflows/integration-test.yml/badge.svg)](https://github.com/datastrato/gravitino/actions/workflows/integration-test.yml)
+[![License](https://img.shields.io/github/license/datastrato/gravitino)](https://github.com/datastrato/gravitino/blob/main/LICENSE)
+[![Contributors](https://img.shields.io/github/contributors/datastrato/gravitino)](https://github.com/datastrato/gravitino/graphs/contributors)
+[![Release](https://img.shields.io/github/v/release/datastrato/gravitino)](https://github.com/datastrato/gravitino/releases)
+[![Open Issues](https://img.shields.io/github/issues-raw/datastrato/gravitino)](https://github.com/datastrato/gravitino/issues)
+[![Last Committed](https://img.shields.io/github/last-commit/datastrato/gravitino)](https://github.com/datastrato/gravitino/commits/main/)
 
 ## Introduction