Tweak UTM parameters added to links (#461)

_data/tools.yml

@@ -2557,21 +2557,38 @@
   v3: true
   v3_1: false
 
+# Fern Entry 1: codegen / sdk gen
 - name: 🌿 Fern
   sponsored: true
   testimonial: >
     I'm a huge fan of Fern. It's a force multiplier for API teams - <a href="https://apisyouwonthate.com">Mike Bifulco, APIs You Won't Hate cofounder</a>
   category:
-    - documentation
     - code-generators
     - sdk
   github: https://github.com/fern-api/fern
   link: https://buildwithfern.com
-  language: SaaS
+  language: TypeScript, Java, Python, Go, and C#
+  description:
+    Generate SDKs in popular languages and publish them to package managers (like npm).
+  v2: true
+  v3: true
+  v3_1: true
+
+# Fern Entry 2: docs product
+- name: 🌿 Fern
+  sponsored: true
+  testimonial: >
+    I'm a huge fan of Fern. It's a force multiplier for API teams - <a href="https://apisyouwonthate.com">Mike Bifulco, APIs You Won't Hate cofounder</a>
+  category:
+    - documentation
+  github: https://github.com/fern-api/fern
+  link: https://buildwithfern.com
+  language: TypeScript, Java, Python, Go, and C#
   description:
-    Generate production-ready SDKs and Documentation for your API.
+    Beautiful API documentation from OpenAPI.
   v2: true
   v3: true
+  v3_1: true
 
 - name: wiretap
   category:

index.html

@@ -171,7 +171,7 @@ <h2 id="{{ category.slug }}">
                 <td class="font-serif w-3/5">
                   <a
                     target="_blank"
-                    href="{{ url }}{% if url contains '?' %}&{% else %}?{% endif %}utm_source=openapi-tools&utm_medium=website&utm_campaign=api-tools"
+                    href="{{ url }}{% if url contains '?' %}&{% else %}?{% endif %}utm_source=openapi-tools&utm_medium=website&utm_campaign={{ category.slug }}"
                   >
                     {{ tool.name }}
                   </a>