minor #3072 Small update to explicit custom template path on components (DocFX)

This PR was merged into the 2.x branch.

Discussion
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Small update to explicit custom template path on components

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| Docs?         | yes
| Issues        | N/A
| License       | MIT

Just a simple doc update proposal to better help with customizing template paths, as most users will probably not use the default paths.

_(BTW: not sure how to REALLY preview documentation like the website renders them, any tip is welcome ^^)_

Commits
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9030e73 Update index.rst

Author: Kocal

src/LiveComponent/doc/index.rst

@@ -66,6 +66,16 @@ and show the new results!
 
 Want some demos? Check out https://ux.symfony.com/live-component#demo
 
+.. tip::
+
+    You can also specify the template path::
+
+        #[AsLiveComponent(template: 'some/path/to/your/template.html.twig')]
+        class ProductSearch
+        {
+            // ...
+
+
 Installation
 ------------