Fix indent errors for prod server

Author: CaseyTa

cohd/TRAPI15.yaml

@@ -57,9 +57,9 @@ info:
         production/x-trapi/
     test_data_location: "https://raw.githubusercontent.com/WengLab-InformaticsResearch/cohd_api/master/cohd/translator/sri_testing_triples.json"
 servers:
- - url: 'https://cohd-api.transltr.io/api'
-   description: COHD ITRB Production Server
-   x-maturity: production
+  - url: 'https://cohd-api.transltr.io/api'
+    description: COHD ITRB Production Server
+    x-maturity: production
   - url: 'https://cohd-api.test.transltr.io/api'
     description: COHD ITRB Test Server
     x-maturity: testing