docs(site): add missing closing quote in example

Closes #277

Author: kimroen

package.json

@@ -34,6 +34,7 @@
     "Jamie Mason (https://github.com/JamieMason)",
     "Jody Heavener (https://github.com/jodyheavener)",
     "Keyan Zhang (https://github.com/keyz)",
+    "Kim Røen (https://github.com/kimroen)",
     "Luis Vieira (https://github.com/luisvieiragmr)",
     "Maksim Nesterenko (https://github.com/maksnester)",
     "Marais Rossouw (https://github.com/maraisr)",

site/src/partials/group-config/_packages.mdx

@@ -18,7 +18,7 @@ packages: ["@my-repo/**"]
 packages: ["my-server", "my-client"]
 
 // ✅ match all packages except negated ones
-packages: ["!my-server", "!@my-repo/**]
+packages: ["!my-server", "!@my-repo/**"]
 
 // ❌ no mixing of specific and negated packages
 packages: ["my-client", "!@my-repo/**"]