How do I use the formatting options to add links to my bot's messages?

There are two ways to add links to your bot’s message using the formatting options:

• Markdown:

Click [here](https://telegram.org) 

• HTML:

Click <a href="http://telegram.org">here</a>

For both cases, there are a few limitations to keep in mind:

• Links shouldn't be empty.

Not supported: Click [here]()

• Only http and https protocols are supported.

Not supported: Click [here](ftp://myftpserver)

• By default, if no protocol is provided, http will be used.

Click [here](telegram.org) will become Click [here](http://telegram.org).

• Nested entities are not supported, meaning you can't add bold, italics or code inside the link (or vice versa).

Not supported: Click [*here*](https://telegram.org) or Click *[here](https://telegram.org)*.