minor symfony#58353 [Emoji] fix Emoji documentation URL (xabbuh)

This PR was merged into the 7.1 branch.

Discussion
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[Emoji] fix Emoji documentation URL

| Q             | A
| ------------- | ---
| Branch?       | 7.1
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Issues        | see symfony/symfony-docs#20216
| License       | MIT

Commits
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b234f6e fix Emoji documentation URL

Author: xabbuh

src/Symfony/Component/Emoji/README.md

@@ -11,7 +11,7 @@ If you have the zlib extension enabled, you can compress the data by running:
 Resources
 ---------
 
- * [Documentation](https://symfony.com/doc/current/components/emoji.html)
+ * [Documentation](https://symfony.com/doc/current/emoji.html)
  * [Contributing](https://symfony.com/doc/current/contributing/index.html)
  * [Report issues](https://github.com/symfony/symfony/issues) and
    [send Pull Requests](https://github.com/symfony/symfony/pulls)