docs: blog comments support added

docs/.overrides/partials/comments.html

@@ -0,0 +1,44 @@
+{% if page.meta.comments %}
+<h2 id="__comments">{{ lang.t("meta.comments") }}</h2>
+<script src="https://giscus.app/client.js" data-repo="mpusz/mp-units" data-repo-id="MDEwOlJlcG9zaXRvcnkxNDU2OTIwNDY="
+  data-category="Blog comments" data-category-id="DIC_kwDOCK8Vjs4Ci6_o" data-mapping="pathname" data-strict="0"
+  data-reactions-enabled="1" data-emit-metadata="1" data-input-position="bottom" data-theme="preferred_color_scheme"
+  data-lang="en" crossorigin="anonymous" async>
+  </script>
+
+<!-- Synchronize Giscus theme with palette -->
+<script>
+  var giscus = document.querySelector("script[src*=giscus]")
+
+  // Set palette on initial load
+  var palette = __md_get("__palette")
+  if (palette && typeof palette.color === "object") {
+    var theme = palette.color.scheme === "slate"
+      ? "transparent_dark"
+      : "light"
+
+    // Instruct Giscus to set theme
+    giscus.setAttribute("data-theme", theme)
+  }
+
+  // Register event handlers after documented loaded
+  document.addEventListener("DOMContentLoaded", function () {
+    var ref = document.querySelector("[data-md-component=palette]")
+    ref.addEventListener("change", function () {
+      var palette = __md_get("__palette")
+      if (palette && typeof palette.color === "object") {
+        var theme = palette.color.scheme === "slate"
+          ? "transparent_dark"
+          : "light"
+
+        // Instruct Giscus to change theme
+        var frame = document.querySelector(".giscus-frame")
+        frame.contentWindow.postMessage(
+          { giscus: { setConfig: { theme } } },
+          "https://giscus.app"
+        )
+      }
+    })
+  })
+</script>
+{% endif %}

docs/blog/posts/2.0.0-released.md

@@ -4,6 +4,7 @@ authors:
   - mpusz
 categories:
   - Releases
+comments: true
 ---
 
 # What's new in mp-units 2.0?

docs/blog/posts/2.1.0-released.md

@@ -4,6 +4,7 @@ authors:
   - mpusz
 categories:
   - Releases
+comments: true
 ---
 
 # mp-units 2.1.0 released!

docs/blog/posts/2.2.0-released.md

@@ -4,6 +4,7 @@ authors:
   - mpusz
 categories:
   - Releases
+comments: true
 ---
 
 # mp-units 2.2.0 released!

docs/blog/posts/2.3.0-released.md

@@ -4,6 +4,7 @@ authors:
  - mpusz
 categories:
  - Releases
+comments: true
 ---
 
 # mp-units 2.3.0 released!

docs/blog/posts/kona-2023-report.md

@@ -4,6 +4,7 @@ authors:
   - mpusz
 categories:
   - WG21 Updates
+comments: true
 ---
 
 # Report from the Kona 2023 ISO C++ Committee meeting

docs/blog/posts/st.louis-2024-report.md

@@ -4,6 +4,7 @@ authors:
  - mpusz
 categories:
  - WG21 Updates
+comments: true
 ---
 
 # Report from the St. Louis 2024 ISO C++ Committee meeting

docs/blog/posts/tokyo-2024-report.md

@@ -4,6 +4,7 @@ authors:
   - mpusz
 categories:
   - WG21 Updates
+comments: true
 ---
 
 # Report from the Tokyo 2024 ISO C++ Committee meeting