Update typescript.md

[alaindet]

Changing from

import * as dayjs from 'dayjs';

to

import dayjs from 'dayjs';

was the only way I was able to use dayjs in an Angular 10 app. No other way worked, including changing the compilerOptions

[iamkun]

This might not a proper change. But you can share a test repo to us to debug it deeply.

[iamkun]

I'll close this since it's been a while since it's been opened. Feel free to reopen if you have updates on this