add a "discuss this post" link option

blog/posts.json

@@ -1,5 +1,6 @@
 [{
     "name": "Blogs are cool, I think",
     "id": "blogs_are_cool",
-    "date": "2/17/2019"
+    "date": "2/17/2019",
+    "discuss": "https://twitter.com/Ellpeck/status/1096937184601538566"
 }]

scripts/blog.js

@@ -10,8 +10,11 @@ $.getJSON("blog/posts.json", function (json) {
         p += '<div class="card bg-light blog-entry rounded-0">';
         p += '<div class="card-body">';
         p += '<a class="blog-button" id="blog-button-' + id + '"><h2 class="card-title">' + obj["name"] + '</h2></a>';
-        p += '<span class="text-muted project-status">' + obj["date"] + "</span>";
         p += '<div class="card-text" id="blog-post-' + id + '"></div>';
+        p += '<span class="text-muted project-status">' + obj["date"] + "</span>";
+        var discussLink = obj["discuss"];
+        if (discussLink)
+            p += '<a href="' + discussLink + '" class="blog-discuss" id="blog-discuss-' + id + '"></a>'
         p += '</div></div>';
         list.append(p);
 
@@ -19,6 +22,9 @@ $.getJSON("blog/posts.json", function (json) {
             var post = $("#blog-post-" + id);
             if (post.html() !== "") {
                 post.html("");
+                var discuss = $("#blog-discuss-" + id);
+                if (discuss.length)
+                    discuss.html("");
                 history.pushState(null, null, "#blog");
             } else {
                 openBlogPost(id);
@@ -42,5 +48,9 @@ function openBlogPost(id) {
     $.get("blog/" + id + ".md", function (markdown) {
         let html = converter.makeHtml(markdown);
         $("#blog-post-" + id).html(html);
+
+        var discuss = $("#blog-discuss-" + id);
+        if (discuss.length)
+            discuss.html("Discuss this post");
     });
 }

style.css

@@ -96,6 +96,10 @@ body {
     margin-top: 20px;
 }
 
+.blog-discuss {
+    padding-top: 15px;
+}
+
 .footer {
     bottom: 0;
     line-height: 30px;