Squashed 'external/json/' content from commit 9cca280a4

git-subtree-dir: external/json
git-subtree-split: 9cca280a4d0ccf0c08f47a99aa71d1b0e52f8d03

docs/examples/ordered_json.cpp

@@ -0,0 +1,14 @@
+#include <iostream>
+#include <nlohmann/json.hpp>
+
+using ordered_json = nlohmann::ordered_json;
+
+int main()
+{
+    ordered_json j;
+    j["one"] = 1;
+    j["two"] = 2;
+    j["three"] = 3;
+
+    std::cout << j.dump(2) << '\n';
+}