Minor docs updates & Link Updates (#361)

### Changes
- Fix docs edit URL
- Update links to new webrecorder.net pages

src/item-index.ts

@@ -377,13 +377,11 @@ class ItemIndex extends LitElement {
     return html`
       <p>
         Don't have any web archives yet? Check out
-        <a
-          href="https://chrome.google.com/webstore/detail/webrecorder-archivewebpag/fpeoodllldobpkbkabpblcfaogecpndd"
-          target="_blank"
+        <a href="https://webrecorder.net/archivewebpage" target="_blank"
           >ArchiveWeb.page</a
         >
         to save pages as you browse the web, or
-        <a href="https://browsertrix.com" target="_blank"
+        <a href="https://webrecorder.net/browsertrix" target="_blank"
           >sign up for Browsertrix</a
         >
         to archive entire websites with automated crawling!