added initial swagger docs

src/main.ts

@@ -1,11 +1,20 @@
 import { NestFactory } from '@nestjs/core';
 import { AppModule } from './app.module';
 import { NestExpressApplication } from '@nestjs/platform-express';
+import { DocumentBuilder, SwaggerModule } from '@nestjs/swagger';
 
 async function bootstrap(): Promise<void> {
   const app = await NestFactory.create<NestExpressApplication>(AppModule);
-  app.enableCors();
-  app.setGlobalPrefix(process.env.PREFIX ?? 'common-cents');
+  const appPrefix = process.env.PREFIX ?? 'common-cents';
+  const config = new DocumentBuilder()
+    .setTitle('Common Cents API')
+    .setDescription('Documentation for Common Cents API')
+    .setVersion('1.0')
+    .build();
+  const documentFactory = () => SwaggerModule.createDocument(app, config);
+  SwaggerModule.setup(appPrefix + '/docs', app, documentFactory);
+  app.enableCors(); // TODO: Research if this is worth worrying about
+  app.setGlobalPrefix(appPrefix);
   await app.listen(process.env.PORT ?? 3000);
 }
 void bootstrap();