comment clarification in readme

Author: jakewmeyer

README.md

@@ -85,7 +85,7 @@ See the [Contribution](https://github.com/r-spacex/SpaceX-API/blob/master/CONTRI
 ## Technical Details
 * API is using [Node.js](https://nodejs.org/en/) with the [Express.js](https://expressjs.com/) framework
 * Uses the [Jest](https://facebook.github.io/jest/) testing framework
-* Uses [Travis CI](https://travis-ci.org/) continuous integration/delivery
+* Uses [Travis CI](https://travis-ci.org/) for continuous integration/delivery
 * All data stored in a [MongoDB Atlas](https://www.mongodb.com/cloud/atlas) 3 node replica set cluster
 * Latest database dump included under [releases](https://github.com/r-spacex/SpaceX-API/releases)
 * API deployed on a [Heroku](https://www.heroku.com/) pipeline with pull request, staging and production servers