1. Added info to catalog

2. refactored parameters list

Author: jennyps

CATALOG.md

@@ -7,4 +7,4 @@ Run single or multiple jenkins job from codefresh pipeline
 - `JENKINS_USERNAME`: jenkins username
 - `JENKINS_TOKEN`: token
 - `JENKINS_URL`: jenkins machine url
-- `JENKINS_JOB_LIST`: list of jenkins jobs to run separated by spaces
+- `JENKINS_JOB`: list of jenkins jobs to run separated by spaces

incubator/run-jenkins-jobs/README.md

@@ -1,7 +1,7 @@
 image: codefresh/run-jenkins-jobs
 tag: master
 version: 0.1.0
-description: Run single or multiple jenkins job from codefresh pipeline
+description: Run jenkins job from codefresh pipeline
 keywords:
   - docker
   - jenkins
@@ -24,6 +24,6 @@ envs:
   - name: JENKINS_URL
     type: required
     description: jenkins machine url
-  - name: JENKINS_JOBS_LIST
+  - name: JENKINS_JOB
     type: required
     description: list of jenkins jobs to run separated by spaces