Update README.md

README.md

@@ -87,6 +87,15 @@ servers = {
 
 - The name of the war implies changes to the previous URLs, for example if war is _ExpliClas.war_ the url would be _http://localhost:8080/ExpliClas/api_.
 
+### Building and deploying the API with Eclipse
+
+Prerequisite: install [Eclipse](https://www.eclipse.org/downloads/) compatible with your Apache Tomcat version
+
+1. Import / Maven / existing Maven project ([ExpliClas API Maven Project](/codigo/expliclas-api) directory)
+2. Window / Preferences / Server / Runtime environments / Add / Tomcat 9.0
+3. Run / Run as / run on server
+
+
 ### Building and deploying the demo web service
 
 If you have changed the API base URL, then go to the [demo config](/codigo/expliclas/src/config.js) to be sure API URL's match.