Update Site Links and Branding (#375)

Partially addresses https://github.com/webrecorder/website/issues/133

- Adds link to ReplayWeb.page marketing site instead of the docs on the
homepage to better explain the product to new users
- Updates embed receipt with company logo
- Minor capitalization fixes and copy updates.

### Screenshots

<img width="677" alt="Screenshot 2024-11-23 at 2 10 38 AM"
src="https://github.com/user-attachments/assets/1f1fef82-12fb-460c-9757-cf0cb70bc281">

<img width="696" alt="Screenshot 2024-11-23 at 2 15 20 AM"
src="https://github.com/user-attachments/assets/2991bd43-d563-492e-9575-5201ff31a91e">

---------

Co-authored-by: Ilya Kreymer <ikreymer@users.noreply.github.com>
Co-authored-by: Ilya Kreymer <ikreymer@gmail.com>

src/appmain.ts

@@ -416,8 +416,8 @@ export class ReplayWebApp extends LitElement {
               <i
                 ><a
                   target="_blank"
-                  href="./docs/#archives-repositories-and-other-projects-using-replaywebpage"
-                  >(See Examples)</a
+                  href="https://webrecorder.net/replaywebpage/"
+                  >(Learn More)</a
                 ></i
               >
             </p>
@@ -771,13 +771,13 @@ export class ReplayWebApp extends LitElement {
                     }
                   </div>
 
-                  <p>Full source code is available at:
-                    <a href="https://github.com/webrecorder/replayweb.page" target="_blank">https://github.com/webrecorder/replayweb.page</a>
+                  <p>Full source code is available 
+                    <a href="https://github.com/webrecorder/replayweb.page" target="_blank">on GitHub</a>.
                   </p>
 
-                  <p>See the <a target="_blank" href="./docs">User Docs</a> or the GitHub README for more info on how it works.</p>
+                  <p>See the <a target="_blank" href="./docs">documentation</a> for more info on how it works.</p>
 
-                  <p>ReplayWeb.page is part of the <a href="https://webrecorder.net/" target="_blank">Webrecorder Project</a>.</p>
+                  <p>ReplayWeb.page is developed by <a href="https://webrecorder.net/" target="_blank">Webrecorder</a>.</p>
 
                   <h3>Privacy</h3>
                   <p><b>No data is uploaded anywhere and no information is collected.</b></p>