stream.md in rj_schema-0.1.4

- old
+ new

@@ -40,10 +40,11 @@
 
 `StringBuffer` is a simple output stream. It allocates a memory buffer for writing the whole JSON. Use `GetString()` to obtain the buffer.
 
 ~~~~~~~~~~cpp
 #include "rapidjson/stringbuffer.h"
+#include <rapidjson/writer.h>
 
 StringBuffer buffer;
 Writer<StringBuffer> writer(buffer);
 d.Accept(writer);
 
@@ -96,10 +97,11 @@
 
 `FileWriteStream` is buffered output stream. Its usage is very similar to `FileReadStream`.
 
 ~~~~~~~~~~cpp
 #include "rapidjson/filewritestream.h"
+#include <rapidjson/writer.h>
 #include <cstdio>
 
 using namespace rapidjson;
 
 Document d;
@@ -213,9 +215,10 @@
 `EncodedOutputStream` is similar but it has a `bool putBOM` parameter in the constructor, controlling whether to write BOM into output byte stream.
 
 ~~~~~~~~~~cpp
 #include "rapidjson/filewritestream.h"  // FileWriteStream
 #include "rapidjson/encodedstream.h"    // EncodedOutputStream
+#include <rapidjson/writer.h>
 #include <cstdio>
 
 Document d;         // Document is GenericDocument<UTF8<> > 
 // ...
 