docs: fix broken links [skip ci]

.github/readme/partials/documentation/setup.md

@@ -2,18 +2,18 @@
 
 There are several ways to setup metrics, each having its advantages and disadvantages:
 
-* [⚙️ Using GitHub Action on a profile repository *(~10 min)*](/.github/readme/partials/setup/action.md)
+* [⚙️ Using GitHub Action on a profile repository *(~10 min)*](/.github/readme/partials/documentation/setup/action.md)
   * ✔️ All features
   * ✔️ High availability (no downtimes)
   * ➖ Configuration can be a bit time-consuming
-* [💕 Using the shared instance *(~1 min)*](/.github/readme/partials/setup/shared.md)
+* [💕 Using the shared instance *(~1 min)*](/.github/readme/partials/documentation/setup/shared.md)
   * ✔️ Easily configurable and previewable
   * ➖ Limited features *(compute-intensive features are disabled)*
 * 🐳 Using command line with docker *(~5 min)* *(documentation not available yet)*
   * ✔️ Suited for one-time rendering
-* [🏗️ Deploying your own web instance *(~20 min)*](/.github/readme/partials/setup/web.md)
+* [🏗️ Deploying your own web instance *(~20 min)*](/.github/readme/partials/documentation/setup/web.md)
   * ➖ Mostly intended for development, or to create another shared instance
 
 Additional resources for setup:
-* [🏦 Configuring metrics for organizations](/.github/readme/partials/organizations.md)
-* [🧰 Template/Plugin compatibility matrix](/.github/readme/partials/compatibility.md)
+* [🏦 Configuring metrics for organizations](/.github/readme/partials/documentation/organizations.md)
+* 🧰 Template/Plugin compatibility matrix *(documentation not available yet)*

.github/readme/partials/introduction.md

@@ -14,7 +14,7 @@ Generate metrics that can be embedded everywhere, including your GitHub profile
 -%>
   <tr>
     <th colspan="2" align="center">
-      <a href="/source/plugins/README.md">🧩 Customizable with <%= Object.entries(plugins).filter(([key, value]) => (value)&&(!["base", "core"].includes(key))).length %> plugins and <%= Object.entries(descriptor.inputs).length %> options!</a>
+      <h3><a href="/source/plugins/README.md">🧩 Customizable with <%= Object.entries(plugins).filter(([key, value]) => (value)&&(!["base", "core"].includes(key))).length %> plugins and <%= Object.entries(descriptor.inputs).length %> options!</a></h3>
     </th>
   </tr>
 <%  if (elements.length%2)
@@ -49,7 +49,7 @@ Generate metrics that can be embedded everywhere, including your GitHub profile
 -%>
   <tr>
     <th colspan="2" align="center">
-      <a href="/source/templates/README.md">🖼️ And even more with <%= elements.length %>+ templates!</a>
+      <h3><a href="/source/templates/README.md">🖼️ And even more with <%= elements.length %>+ templates!</a></h3>
     </th>
   </tr>
 <%  if (elements.length%2)