docs(redirects): add redirect for Contiguous Array problem

apps/docs/redirects.ts

@@ -72,6 +72,7 @@ export default [
   { from: "/424", to: "/sliding-window/longest-repeating-character-replacement" },
   { from: "/435", to: "/intervals/non-overlapping-intervals" },
   { from: "/451", to: "/hash-table/sort-characters-by-frequency" },
+  { from: "/525", to: "/prefix-sum/contiguous-array" },
   { from: "/560", to: "/prefix-sum/subarray-sum-equals-k" },
   { from: "/567", to: "/sliding-window/permutation-in-string" },
   { from: "/684", to: "/union-find/redundant-connection" },