Add documentation links

lib/plausible_web/templates/site/settings_custom_domain.html.eex

@@ -1,7 +1,11 @@
 <div class="shadow bg-white sm:rounded-md sm:overflow-hidden py-6 px-4 sm:p-6">
-  <header>
+  <header class="relative">
     <h2 class="text-lg leading-6 font-medium text-gray-900">Custom domain</h2>
     <p class="mt-1 text-sm leading-5 text-gray-500">Serve the tracking script from your domain name as a first-party resource instead of loading the script from our domain.</p>
+
+    <%= link(to: "https://docs.plausible.io/custom-domain/", target: "_blank") do %>
+      <svg class="w-6 h-6 absolute top-0 right-0 text-gray-400" fill="currentColor" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" d="M18 10a8 8 0 11-16 0 8 8 0 0116 0zm-7-4a1 1 0 11-2 0 1 1 0 012 0zM9 9a1 1 0 000 2v3a1 1 0 001 1h1a1 1 0 100-2v-3a1 1 0 00-1-1H9z" clip-rule="evenodd"></path></svg>
+    <% end %>
   </header>
   <div class="mt-6">
     <%= if @site.custom_domain do %>

lib/plausible_web/templates/site/settings_email_reports.html.eex

@@ -1,7 +1,10 @@
 <div class="shadow bg-white sm:rounded-md sm:overflow-hidden py-6 px-4 sm:p-6">
-  <header>
+  <header class="relative">
     <h2 class="text-lg leading-6 font-medium text-gray-900">Email reports</h2>
     <p class="mt-1 text-sm leading-5 text-gray-500">Send weekly/monthly analytics reports to as many addresses as you wish</p>
+    <%= link(to: "https://docs.plausible.io/email-reports/", target: "_blank") do %>
+      <svg class="w-6 h-6 absolute top-0 right-0 text-gray-400" fill="currentColor" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" d="M18 10a8 8 0 11-16 0 8 8 0 0116 0zm-7-4a1 1 0 11-2 0 1 1 0 012 0zM9 9a1 1 0 000 2v3a1 1 0 001 1h1a1 1 0 100-2v-3a1 1 0 00-1-1H9z" clip-rule="evenodd"></path></svg>
+    <% end %>
   </header>
 
   <div class="my-8 flex items-center">

lib/plausible_web/templates/site/settings_general.html.eex

@@ -1,10 +1,13 @@
 <%= form_for @changeset, "/#{URI.encode_www_form(@site.domain)}/settings", fn f -> %>
   <div class="shadow sm:rounded-md sm:overflow-hidden">
     <div class="bg-white py-6 px-4 space-y-6 sm:p-6">
-      <div>
+      <header class="relative">
         <h2 class="text-lg leading-6 font-medium text-gray-900">General information</h2>
         <p class="mt-1 text-sm leading-5 text-gray-500">Update your billing information. Please note that updating your location could affect your tax rates.</p>
-      </div>
+        <%= link(to: "https://docs.plausible.io/general/", target: "_blank") do %>
+          <svg class="w-6 h-6 absolute top-0 right-0 text-gray-400" fill="currentColor" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" d="M18 10a8 8 0 11-16 0 8 8 0 0116 0zm-7-4a1 1 0 11-2 0 1 1 0 012 0zM9 9a1 1 0 000 2v3a1 1 0 001 1h1a1 1 0 100-2v-3a1 1 0 00-1-1H9z" clip-rule="evenodd"></path></svg>
+        <% end %>
+      </header>
 
       <div class="grid grid-cols-4 gap-6">
         <div class="col-span-4 sm:col-span-2">

lib/plausible_web/templates/site/settings_goals.html.eex

@@ -1,7 +1,10 @@
 <div class="shadow bg-white sm:rounded-md sm:overflow-hidden py-6 px-4 sm:p-6">
-  <header>
+  <header class="relative">
     <h2 class="text-lg leading-6 font-medium text-gray-900">Goals</h2>
     <p class="mt-1 text-sm leading-5 text-gray-500">Define actions that you want your users to take like visiting a certain page, submitting a form, etc.</p>
+    <%= link(to: "https://docs.plausible.io/goal-conversions/", target: "_blank") do %>
+      <svg class="w-6 h-6 absolute top-0 right-0 text-gray-400" fill="currentColor" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" d="M18 10a8 8 0 11-16 0 8 8 0 0116 0zm-7-4a1 1 0 11-2 0 1 1 0 012 0zM9 9a1 1 0 000 2v3a1 1 0 001 1h1a1 1 0 100-2v-3a1 1 0 00-1-1H9z" clip-rule="evenodd"></path></svg>
+    <% end %>
   </header>
 
     <%= if Enum.count(@goals) > 0 do %>

lib/plausible_web/templates/site/settings_search_console.html.eex

@@ -1,7 +1,10 @@
 <div class="shadow bg-white sm:rounded-md sm:overflow-hidden py-6 px-4 sm:p-6">
-  <header>
+  <header class="relative">
     <h2 class="text-lg leading-6 font-medium text-gray-900">Google Search Console integration</h2>
     <p class="mt-1 text-sm leading-5 text-gray-500">You can integrate with Google Search Console to get all of your important search results stats such as keyword phrases people find your site with.</p>
+    <%= link(to: "https://docs.plausible.io/google-search-console-integration/", target: "_blank") do %>
+      <svg class="w-6 h-6 absolute top-0 right-0 text-gray-400" fill="currentColor" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" d="M18 10a8 8 0 11-16 0 8 8 0 0116 0zm-7-4a1 1 0 11-2 0 1 1 0 012 0zM9 9a1 1 0 000 2v3a1 1 0 001 1h1a1 1 0 100-2v-3a1 1 0 00-1-1H9z" clip-rule="evenodd"></path></svg>
+    <% end %>
   </header>
 
   <%= if @site.google_auth do %>

lib/plausible_web/templates/site/settings_snippet.html.eex

@@ -1,7 +1,11 @@
 <%= form_for @conn, "/", [class: "shadow bg-white sm:rounded-md sm:overflow-hidden py-6 px-4 sm:p-6"], fn f -> %>
-  <header>
+  <header class="relative">
     <h2 class="text-lg leading-6 font-medium text-gray-900">Javascript snippet</h2>
     <p class="mt-1 text-sm leading-5 text-gray-500">Include this snippet in the <code>&lt;head&gt;</code> of your website.</p>
+
+    <%= link(to: "https://docs.plausible.io/plausible-script", target: "_blank") do %>
+      <svg class="w-6 h-6 absolute top-0 right-0 text-gray-400" fill="currentColor" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" d="M18 10a8 8 0 11-16 0 8 8 0 0116 0zm-7-4a1 1 0 11-2 0 1 1 0 012 0zM9 9a1 1 0 000 2v3a1 1 0 001 1h1a1 1 0 100-2v-3a1 1 0 00-1-1H9z" clip-rule="evenodd"></path></svg>
+    <% end %>
   </header>
 
   <div class="my-4">