fix(docs): Typo in libraries exclusion pattern (#4972)

Co-authored-by: Antony Mota <amota.confluenceconseil@boiron.fr>

docs/docs/features/libraries.md

@@ -75,7 +75,7 @@ Some basic examples:
 - `*.tif` will exclude all files with the extension `.tif`
 - `hidden.jpg` will exclude all files named `hidden.jpg`
 - `**/Raw/**` will exclude all files in any directory named `Raw`
-- `*.(tif,jpg)` will exclude all files with the extension `.tif` or `.jpg`
+- `*.{tif,jpg}` will exclude all files with the extension `.tif` or `.jpg`
 
 ### Nightly job