docs: improve overall documentation

.github/readme/partials/documentation/plugins.md

@@ -1,19 +1,15 @@
 ## 🧩 Plugins
 
-Plugins are features which provide additional content and lets you customize your rendered metrics.
-See their respective documentation for more informations about how to setup them.
+Plugins provide additional content and lets you customize your rendered metrics.
 
-The following plugins are maintained by Metric's core team:
+* **📦 Maintained by core team**
 <% { let previous = null; for (const [plugin, {name, category, authors = []}] of Object.entries(plugins).filter(([key, value]) => (value)&&(value.category !== "community")).sort(([an, a], [bn, b]) => a.category === b.category ? an.localeCompare(bn) : 0)) { %>
 <% if (previous !== category) { previous = category -%>
-* **<%= `${category.charAt(0).toLocaleUpperCase()}${category.substring(1)}` %>**
+  * **<%= `${category.charAt(0).toLocaleUpperCase()}${category.substring(1)}` %>**
 <% } -%>
-  * [<%- name %>](/source/plugins/<%= plugin %>/README.md)<%# -%>
+    * [<%- name %>](/source/plugins/<%= plugin %>/README.md)<%# -%>
 <% }} %>
-
-### 🎲 Community plugins
-
-The following plugins are provided and maintained by Metrics's user community:
+* **🎲 Maintained by community**
 <% { let previous = null; for (const [plugin, {name, category, authors = []}] of Object.entries(plugins).filter(([key, value]) => (value)&&(value.category === "community")).sort(([an, a], [bn, b]) => a.category === b.category ? an.localeCompare(bn) : 0)) { %><%# -%>
   * [<%- name %>](/source/plugins/<%= plugin %>/README.md) by <%- authors.map(author => `[@${author}](https://github.com/${author})`).join(" ") %>
 <% }} %>