docs(docs.nestjs.com) show example of enabling Throttle rate limiting…

[lukaszniemkiewicz]

show example of enabling Throttle rate limiting behind proxies with express

the documentation was unsufficient to succesfuly implement the throttling since the external link to express suggested using 'app.set' method, wich by default throws 'property set does not exist` error

PR Checklist

Please check if your PR fulfills the following requirements:

• [x ] The commit message follows our guidelines: https://github.com/nestjs/docs.nestjs.com/blob/master/CONTRIBUTING.md

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• [x ] Docs
• Other... Please describe:

What is the current behavior?

documentation for rate limiting behind proxies is insufficient to implement the throttling, since the external link to express suggested using app.set('trust proxy', 'loopback') method, which in NestJs throws property set does not exist error

Issue Number: N/A

What is the new behavior?

To successfully apply app.set('trust proxy', 'loopback') one needs to modify main.ts as shown in the commit
specifically changeing: const app = await NestFactory.create<NestExpressApplication>(AppModule);

Does this PR introduce a breaking change?

• Yes
• No

Other information

[micalevisk]

can you remove the .swp file

I guess this is a good time to add the following to .gitignore as well :)

# Vim
[._]*.s[a-v][a-z]
[._]*.sw[a-p]
[._]s[a-rt-v][a-z]
[._]ss[a-gi-z]
[._]sw[a-p]

[jmcdo29]

Minor grammar change, otherwise looks good