Add links to notes on iCloud.com
Create a link to another note or add a URL to a webpage.
Go to icloud.com/notes, then sign in to your Apple Account (if necessary).
Select a note.
Click into the note where you want to add a link, then do either of the following:
Add a link to another note: Type “>>” and then select a note from the list to add a link to that note.
If the note you want to link to doesn’t appear in the list, start typing the title of the note until it appears.
To add a link to a new note, type the title of the new note, then click Create Note [note title]. The new note appears in your sidebar.
Add a URL: Press Command-K (on a Mac) or Control-K (on a Windows computer). Add the URL, then enter an optional name if you want the link text to be different from the URL. When you’re finished, click Done.
Tip: You can also add a link to another note by pressing Command-K (on a Mac) or Control-K (on a Windows computer), then click the Link To field and choose a note from the list.