Update 03.create_app_04.md

Author: wjallen

docs/03.create_app_04.md

@@ -95,7 +95,7 @@ First, create a template job json file:
 ```
 % jobs-template username-fastqc-0.11.7 > job.json
 ```
-Add `"fastq": "agave://data-sd2e-community/sample/sailfish/test/read1.fastq"` to the "inputs" field of the job.json to run a test job.
+If it is not already present, add `"fastq": "agave://data-sd2e-community/sample/sailfish/test/read1.fastq"` to the "inputs" field of the job.json to run a test job.
 
 Here are the expected contents of `job.json`:
 ```