docs: update README.md with new content

sites/dossiers.ngi.hacktivism.ch/_cascade/bar.js

@@ -0,0 +1,24 @@
+(function () {
+  var nodes = document.querySelectorAll(".cascade-bar [data-tip]");
+  if (!nodes.length) return;
+  fetch("/branch-status.json", { cache: "no-store" })
+    .then(function (res) {
+      if (!res.ok) throw new Error("status");
+      return res.json();
+    })
+    .then(function (data) {
+      var tips = {};
+      var list = (data && data.branches) || [];
+      for (var i = 0; i < list.length; i++) {
+        var row = list[i];
+        if (row && row.branch && row.tip) tips[row.branch] = row.tip;
+      }
+      for (var j = 0; j < nodes.length; j++) {
+        var el = nodes[j];
+        var name = el.getAttribute("data-tip");
+        var tip = tips[name];
+        if (tip) el.textContent = name + " @ " + tip;
+      }
+    })
+    .catch(function () {});
+})();