Update README.md

Author: boaglio

README.md

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 # jenkins-plugin-sqlplus-script-runner
 Jenkins plugin - SQL*Plus Script Runner
+
+This plugin enables you run SQL\*Plus scripts on your Jenkins jobs ( _SQL\*Plus installation required!_ ).
+
+All you have to do is provide a valid *ORACLE_HOME* and you are in business:
+
+![Main Setup](https://github.com/boaglio/jenkins-plugin-sqlplus-script-runner/raw/master/shots/main-setup.png)
+
+You can run a script inside your workspace or a user defined for every job:
+
+![Job Setup](https://github.com/boaglio/jenkins-plugin-sqlplus-script-runner/raw/master/shots/setup-by-project.png)
+
+You can check later all SQL*Plus output inside your build output:
+
+![Script running inside a job](https://github.com/boaglio/jenkins-plugin-sqlplus-script-runner/raw/master/shots/script-running.png)