add cjs module format to nestjs guide (#7354)

* add cjs module format

* white space removed

Author: aidankmcalister

content/800-guides/430-nestjs.mdx

@@ -73,14 +73,16 @@ This creates a new `prisma` directory with the following contents:
 - `prisma.config.ts`: A configuration file for your projects
 - `.env`: A [dotenv](https://github.com/motdotla/dotenv) file, typically used to store your database credentials in a group of environment variables
 
-### 2.3. Set the generator output path
+### 2.3. Set the generator output path and update the module format
 
-Specify your output `path` for the generated Prisma client either by passing `--output ../src/generated/prisma` during `prisma init`, or directly in your Prisma schema:
+Specify your output `path` for the generated Prisma client by either passing `--output ../src/generated/prisma` during `prisma init` or directly in your Prisma schema. Also, update the `moduleFormat` to `cjs`:
 
 ```prisma file=prisma/schema.prisma
 generator client {
   provider = "prisma-client"
   output   = "../src/generated/prisma"
+  // add-next-line
+  moduleFormat = "cjs"
 }
 ```