Use enum for access_level

config.yaml

@@ -1,10 +1,10 @@
 title: Scraper
-description: 'Scrape and optionally crawl a given site for documents to upload to DocumentCloud.'
+description: "Scrape and optionally crawl a given site for documents to upload to DocumentCloud."
 instructions: |
   You may specify a project to scrape the documents into as well as an access level. 
   Scraper can alert you by email or Slack notification when given keywords appear in
   documents if you specify keywords to monitor. For Slack notifications, you must provide a webhook. 
-  
+
   The crawl depth is a parameter that tells the Scraper how many clicks deep away from the
   site you specify in order to continue looking for documents. 
   If the PDFs are directly linked on the site you provide 
@@ -42,8 +42,12 @@ properties:
   access_level:
     title: Access Level
     type: string
-    description: Access level (public, private, or organization) of documents scraped.
+    description: Access level of documents scraped.
     default: public
+    enum:
+      - public
+      - organization
+      - private
   #filetypes:
   #  title: File Types
   #  type: string