how do I add a link to go to a document on my computer?

Thank you Russell. I appreciate your prompt response!

I am new to managing the website, so I have no clue how to do that.

@sharrilyn7108​ HOW TO CREATE AN ANCHOR LINK: https://community.homestead.com/homestead/topics/sitebuilder-plus-anchor-links

 HOW TO LINK A PAGE, TEXT OR IMAGE:
How do I link text? https://community.homestead.com/homestead/topics/how_do_i_link_text_on_my_page
How do I link an image? https://community.homestead.com/homestead/topics/how_can_i_make_an_image_link_to_another_page
You can use a site navigation menu
You can link text.
You can link an image.
You can make anchor links.

HOW TO CREATE A LINK:
https://community.homestead.com/homestead/topics/sitebuilder-plus-anchor-links
Select the text or image > From the image settings or text settings menu select Link > browse to insert an element from you files or to create an anchor link choose "Another Area on this Page > Click the down arrow to reveal the anchor link choice. Click Anchor link > You'll see the Anchor Element. Place this element in the desired position on your page.

You can add a link to an image or text using the link options to a URL. Here are instructions on adding links. https://community.homestead.com/conversations/websitebuilder/websitebuilder-link-image/5f2a9b3358180958845e01fe

LINK AN IMAGE:
Select the image > Use Image Setting Menu > Link > You can browse and select the link element of you can Copy the link URL address and insert it into the link command box.
LINK TEXT: Highlight the text and follow the same procedure.

LINK AN ELEMENT ON A DIFFERENT PAGE:
https://community.homestead.com/homestead/topics/what_are_anchor_links_and_how_can_i_use_them
Produce an anchor link for the desired element, save and publish. Using your browser, navigate to the page and select the element. You'll see that the URL has changed to include the element's link address. Copy that URL and paste it in your Settings menu Link command.

CREATE A LINK TO ANOTHER ELEMENT ON A DIFFERENT PAGE: You can select the URL from the address line and paste it into your Link command box. If the image or text on the page has an anchor link, you can select that element and the URL will include that specific element. Using that URL address will target that specific element. For example: Select any element on the page and produce an anchor link for that element. Save and publish. Use your browser, navigate and select that element in your site. You will see that the URL address has changed to include the anchor linked item. Copy that URL and paste that as your target link in your Link command box in Image Settings or Text Settings.
In your builder, you can create a link to a different part of the page by following these instructions: https://community.homestead.com/homestead/topics/what_are_anchor_links_and_how_can_i_use_them#differentpage.

Produce an anchor link for the desired element, save and publish. Using your browser, navigate to the page and select the element. You'll see that the URL has changed to include the element's link address. Copy that URL and paste it in your Settings Menu Link command.