Merge pull request #1221 from barsheshet/master

docs(content): Async configuration port type fix

Author: kamilmysliwiec

content/techniques/sql.md

@@ -617,7 +617,7 @@ TypeOrmModule.forRootAsync({
   useFactory: (configService: ConfigService) => ({
     type: 'mysql',
     host: configService.get<string>('HOST'),
-    port: configService.get<string>('PORT'),
+    port: configService.get<number>('PORT'),
     username: configService.get<string>('USERNAME'),
     password: configService.get<string>('PASSWORD'),
     database: configService.get<string>('DATABASE'),