Update README.md

Added KeepTool (for Oracle Database).

README.md

@@ -71,6 +71,7 @@ For updates on `awesome-db-tools` and thoughts/news about databases/tools/SQL fo
 - [dbKoda](https://github.com/SouthbankSoftware/dbkoda) - Modern (JavaScript/Electron framework), open source IDE for MongoDB. It has features to support development, administration and performance tuning on MongoDB databases.
 - [IBExpert](http://www.ibexpert.net/ibe) - Comprehensive GUI tool for Firebird and InterBase.
 - [HeidiSQL](https://github.com/HeidiSQL/HeidiSQL) - A lightweight client for managing MySQL, MSSQL and PostgreSQL, written in Delphi.
+- [KeepTool](https://keeptool.com) - A professional suite of tools for Oracle Database developers, administrators and advanced application users.
 - [MySQL Workbench](https://www.mysql.com/products/workbench) - MySQL Workbench is a unified visual tool for database architects, developers, and DBAs.
 - [Navicat](https://www.navicat.com/en/products#navicat) - A database development tool that allows you to simultaneously connect to MySQL, MariaDB, SQL Server, Oracle, PostgreSQL, and SQLite databases from a single application.
 - [Oracle SQL Developer](http://www.oracle.com/technetwork/developer-tools/sql-developer) - Oracle SQL Developer is a free, integrated development environment that simplifies the development and management of Oracle Database in both traditional and Cloud deployments.