Add documentation for context about sentry-laravel HOT 2 CLOSED

namespace App\Http\Middleware;

use Context;
use Closure;

class SentryContext
{
    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request $request
     * @param  \Closure                 $next
     *
     * @return mixed
     */
    public function handle($request, Closure $next)
    {
        if (app()->bound('sentry')) {
            /** @var \Raven_Client $sentry */
            $sentry = app('sentry');

            // Add user context
            if (auth()->check()) {
                $sentry->user_context([...]);
            } else {
                $sentry->user_context(['id' => null]);
            }

            // Add tags context
            $sentry->tags_context([...]);
        }

        return $next($request);
    }
}