Removed space in line 9

app/helpers/sessions_helper.rb

@@ -6,13 +6,13 @@ module SessionsHelper
   # Returns the current logged-in user (if any)
   def current_user
     if session[:user_id]
-      @current_user ||= User.find_by( id: session[:user_id])
+      @current_user ||= User.find_by(id: session[:user_id])
     end
   end
 
   # Return true if the user is logged in, false otherwise . 
   def logged_in?
-   current_user.present?
+    current_user.present?
   end
 
   # Logs out the current user