There are two ways to get to the account editor:
On the home page, look to the left side of the page, just below your name and image. You will see an option to “edit your account.” On this page, you will be able to edit your basic personal information, your job/career history, your places, your social media, your skills and interests, and you will be able to upload your resume. You will also be able to make changes to your account such as updating your email subscriptions.
You can also get to these pages by clicking on your name and image in the upper right and selecting "Edit info" from the dropdown.