activate pdf for CSS service

otc_metadata/data/documents/css-api-ref.yaml

@@ -2,7 +2,7 @@
 hc_location: api/css
 html_location: docs/css/api-ref
 link: /cloud-search-service/api-ref/
-pdf_enabled: false
+pdf_enabled: true
 pdf_environment: internal
 rst_location: api-ref/source
 service_type: css

otc_metadata/data/documents/css-best-practice.yaml

@@ -2,7 +2,7 @@
 hc_location: bestpractice/css
 html_location: docs/css/best-practice
 link: /cloud-search-service/best-practice/
-pdf_enabled: false
+pdf_enabled: true
 pdf_environment: internal
 rst_location: doc/best-practice/source
 service_type: css

otc_metadata/data/documents/css-umn.yaml

@@ -2,7 +2,7 @@
 hc_location: usermanual/css
 html_location: docs/css/umn
 link: /cloud-search-service/umn/
-pdf_enabled: false
+pdf_enabled: true
 pdf_environment: internal
 rst_location: umn/source
 service_type: css