prefer similarweb for website ranks (#7154)

* prefer similarweb for website ranks

* Update icon_request.yml

* Update icon_request.yml

* update CONTRIBUTING.md

* format yaml

* update pull request template

* update example

* fix formatting errors

.github/ISSUE_TEMPLATE/icon_request.yml

@@ -42,14 +42,18 @@ body:
     attributes:
       label: Popularity Metric
       description: >-
-        Provide either an [Alexa rank] or the number of GitHub stars. If these are not
-        available or too low you can still open the issue. In this case, please
-        provide any information regarding the brand's popularity you think is
+        Provide either a [Similarweb rank] or the number of GitHub stars. If
+        Similarweb does not have a rank for your brand or the rank fails to meet our
+        requirements, we can also accept an [Alexa rank] as an alternative. If these
+        are not available or too low you can still open the issue. In this case,
+        please provide any information regarding the brand's popularity you think is
         relevant.
 
 
-        [alexa rank]: https://www.alexa.com/siteinfo
-      placeholder: 'Example: The Alexa rank is 249,089. See https://www.alexa.com/siteinfo/simpleicons.org'
+        [Similarweb rank]: https://www.similarweb.com
+
+        [Alexa rank]: https://www.alexa.com/siteinfo
+      placeholder: 'Example: The Similarweb rank is 261,758. See https://www.similarweb.com/website/simpleicons.org'
     validations:
       required: true
 

.github/PULL_REQUEST_TEMPLATE.md

@@ -7,8 +7,8 @@ https://petershaggynoble.github.io/SI-Sandbox/preview/
 -->
 
 **Issue:**
-**Alexa rank:**
-  <!-- The Alexa rank can be retrieved at https://www.alexa.com/siteinfo/
+**Similarweb rank:**
+  <!-- The Similarweb rank can be retrieved at https://www.similarweb.com
        Please see our contributing guidelines for more details on how we
        assess a brand's popularity. -->
 

CONTRIBUTING.md

@@ -43,7 +43,7 @@ We welcome icon requests. Before you submit a new issue please make sure the ico
 
 * Has not already been requested. If you find an existing issue or pull request for the brand you're looking for then please add a reaction or comment to show your support.
 * Is of a _popular_ brand:
-    - For websites, the [Alexa rank](https://www.alexa.com/siteinfo) should be less than 500k.
+    - For websites, the [Similarweb rank](https://www.similarweb.com) should be less than 500k.
         - Note that for brands that have already been added the threshold for continued inclusion rises to 750k.
     - For GitHub projects, the amount of "stars" should be above 5k.
     - For anything else, popularity will be judged on a case-by-case basis.