Apply suggestions from code review

Co-authored-by: David Moore <[email protected]>

Author: raksiv

docs/guides/nodejs/nitric-and-pgsql.mdx

@@ -22,7 +22,6 @@ The first step is to create a new Nitric TypeScript project using the [Nitric CL
 
 ```bash
 nitric new todo-app ts-starter
-npm install
 ```
 
 ## Enabling SQL databases
@@ -72,7 +71,7 @@ export default getClient
 
 Create a migration file to define the `todos` table.
 
-```sql title: 'migrations/1_create_table.up.sql'
+```sql title: migrations/todos/1_create_table.up.sql
 CREATE TABLE IF NOT EXISTS todos (
     id SERIAL PRIMARY KEY,
     text TEXT NOT NULL,