Update machines.mdx

Author: matt-aitken

docs/v3/machines.mdx

@@ -17,7 +17,7 @@ export const heavyTask = task({
 });
 ```
 
-The default machine is `small-1x` which has 1 vCPU and 1 GB of RAM. You can change the default machine in your `trigger.config.ts` file:
+The default machine is `small-1x` which has 0.5 vCPU and 0.5 GB of RAM. You can change the default machine in your `trigger.config.ts` file:
 
 ```ts trigger.config.ts
 import type { TriggerConfig } from "@trigger.dev/sdk/v3";