📝 added note to example files

README.md

@@ -64,6 +64,8 @@ to the files you want to use JSON objects. That's it. Do not forget to set the n
 
 ## Examples
 
+Beside the examples below, you may want to check the [documentation](https://nlohmann.github.io/json/) where each function contains a separate code example (e.g., check out [`emplace()`](https://nlohmann.github.io/json/classnlohmann_1_1basic__json_a602f275f0359ab181221384989810604.html#a602f275f0359ab181221384989810604)). All [example files](https://github.com/nlohmann/json/tree/develop/doc/examples) can be compiled and executed on their own (e.g., file [emplace.cpp](https://github.com/nlohmann/json/blob/develop/doc/examples/emplace.cpp)).
+
 ### JSON as first-class data type
 
 Here are some examples to give you an idea how to use the class.