Update docs

Author: cristianrgreco

docs/quickstart/global-setup.md

@@ -19,7 +19,7 @@ export async function setup() {
     url: `redis://${redisContainer.getHost()}:${redisContainer.getMappedPort(6379)}` 
   });
 
-  await redisClient.connect();
+  await globalThis.redisClient.connect();
 }
 
 export async function teardown() {

docs/quickstart/logging.md

@@ -132,4 +132,4 @@ If we run the test again, we'll see a lot of debug output:
 [INFO] [936d82e9964e] Stopped container
 ```
 
-These logs are very useful for debugging when a container isn't working as expected. You can see there are logs from the Testcontainers library, as well as logs emitted from all Testcontainers-managed containers.
+These logs are useful for debugging when a container isn't working as expected. You can see there are logs from the Testcontainers library, as well as logs emitted from all Testcontainers-managed containers.