Help file when you click on help menu

Question

Hello

When I click the Help menu, the help.pdf file must be displayed. How can I do that.
I did the following but don't know how to proceed.

Right click your project and select Add - Existing Item

Select your file (don't double click it)

• Click the little arrow next to the Add button and select Add As Link

Double click on Properties - Resources.resx

Click the little arrow next to Add Resource and select Add Existing File

Select the same file again in the open dialog

Can you help me please to complete this procedure, or suggest another one.