fix(caches): Update JS redisInstrumentation snippet (2) (#1304)

Author: s1gr1d

develop-docs/sdk/performance/modules/caches.mdx

@@ -62,7 +62,7 @@ This will likely only be useful if Redis is being used as a cache.
 ```
 Sentry.init({
   integrations: [
-    redisIntegration({
+    Sentry.redisIntegration({
 	    cachePrefixes: ['posts:', 'authors:'],
     }),
   ],