Update README.md

[jacklawry]

Add example for the Templates as per the release page https://our.umbraco.com/download/releases/1381

Description

Use correct Bash and giving an example as it isn't clear that:

dotnet new install Umbraco.Templates::13.*

actually means:

dotnet new install Umbraco.Templates::13.8.1

to anyone who doesn't create new sites all the time.

Type of suggestion

• [* ] Typo/grammar fix
• Updated outdated content
• New content
• Updates related to a new version
• [ *] Other

Product & version (if relevant)

N/A

Deadline (if relevant)

N/A

[sofietoft]

Thanks for the suggestion @jacklawry ! 🙌

We don't add specific version numbers, as we would then have to go an update that number whenever a new patch or minor was released!
But I like mentioning how to actually use the versioning here.

I've made a suggestion - let me know what you think!

[sofietoft]

How about we add a bit more explanation to it as well:

Suggested change

	e.g.
	```bash
	dotnet new install Umbraco.Templates::13.8.1`
	```
	{% hint style="info" %}
	Replace `13.*` with the specific version you want to install.
	Example:
	```bash
	dotnet new install Umbraco.Templates::13.8.1`

{% endhint %}

[jacklawry]

Yes that looks good and will be a helpful reminder when people need to do a new install.

[sofietoft]

Agreed @jacklawry ! 😄

I've applied the changes. Will get it merged 💪
Thanks again for the PR and for helping out with the docs!