Add description property to smart bulletin No. 033.

This will create a description meta tag on the page that will be picked up when keywords are searched using a search engine.

src/content/smart-bulletins/033.md

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 title: "Smart Bulletin No. 033"
+description: "Smart Bulletin 033 provides guidance to agencies implementing section 889(a)(1)(B) of the John S. McCain National Defense Authorization Act (NDAA). The act prohibits Federal agencies from purchasing products or services from prohibited vendors. You can find a list of prohibited vendors and learn more about how this affects GSA SmartPay program participants."
 intro: "Card Management Implications and Information for Agency Consideration in Relation to the Section 889 Prohibition on Acquiring Certain Telecommunications and Video Surveillance Equipment"
 number: "No. 033"
 order: 033