Fix RewriteRule in .htaccess

.* requires parentheses for the backreference to work.

See Azure-Samples/laravel-tasks#10

Author: BristolJim

articles/app-service/containers/configure-language-php.md

@@ -83,7 +83,7 @@ The default PHP image for App Service uses Apache, and it doesn't let you custom
 <IfModule mod_rewrite.c>
     RewriteEngine on
 
-    RewriteRule ^.*$ /public/$1 [NC,L,QSA]
+    RewriteRule ^(.*)$ /public/$1 [NC,L,QSA]
 </IfModule>
 ```