Update news.json

assets/javascripts/news.json

@@ -1,4 +1,8 @@
 [
+  [
+    "2021-02-26",
+    "New documentation: <a href=\"/react_bootstrap/\">React Bootstrap</a>"
+  ],
   [
     "2021-01-03",
     "New documentation: <a href=\"/ocaml/\">OCaml</a>"