ci: pipe output into final markdown file

.gitlab-ci.yml

@@ -12,7 +12,7 @@ create_overall_md:
   stage: build
   image: alpine:3.7
   script:
-    - cat technical-reference-main.txt | while read LINE; do cat $LINE >> test.md ; done
+    - cat technical-reference-main.txt | while read LINE; do cat $LINE >> rdd-technical-reference.md ; done
   artifacts:
     expose_as: 'test document'
     paths: