To do this editing, you'll need to know your node URL. The easiest way to find your node URL is to load up a Salsa page (action page, donation page, signup page, etc.) to get the page's URL.
For example, here's a registration page URL for Salsa's Community Conference:
Now we'll trim some of the fat to get the node URL:
This URL is comprised of several parts:
http:// - required to properly resolve as an HTML page.
node/ - this is the domain section. There are many domains used by Salsa (even more if you count branded subdomains), such as action.salsalabs.com, org2.salsalabs.com, salsa4.salsalabs.com, and more.
o/-OrgKey-/ - this section designates your Salsa account through the organization key.
c/-ChapterKey-/ - this section should only be used by organizations using the Chapters feature of Salsa; otherwise, it should be cut. Similar to the above section, this designates your chapter's identifying key number.
p/salsa/ - required part of the URL before additional sections which designate the type of Salsa page.