Update privacy-policy.md

fix grammar mistake.

Privacy/privacy-policy.md

@@ -7,7 +7,7 @@ excerpt: |
   Date: December 18, 2022
 
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-<header> <h2>Privacy Policy</h2> </header> This page lists our publicly availably documents focussing on policies and visions.
+<header> <h2>Privacy Policy</h2> </header> This page lists our publicly available documents focussing on policies and visions.
 
 ## Introduction