Fix typo (#40942)

Typo reported by a community member on Discord.

GitOrigin-RevId: f54dc1cf80871d24c887b17383d513856cbb7eb1

Author: jamwt

npm-packages/docs/docs/database/advanced/occ.md

@@ -8,7 +8,7 @@ description:
   "Optimistic concurrency control and transaction atomicity in Convex"
 ---
 
-In [Queries](/functions/query-functions.mdx), we mentioned that determinism as
+In [Queries](/functions/query-functions.mdx), we mentioned that determinism was
 important in the way optimistic concurrency control (OCC) was used within
 Convex. In this section, we'll dive much deeper into _why_.