Add example catalog in readme

readme.md

@@ -126,4 +126,23 @@ The following diagram shows the process.
 
 ![simpledom](doc/diagram/simpledom.png)
 
-More [examples](https://github.com/miloyip/rapidjson/tree/master/example) are available.
+More [examples](https://github.com/miloyip/rapidjson/tree/master/example) are available:
+
+* DOM API
+ * [tutorial](https://github.com/miloyip/rapidjson/blob/master/example/tutorial/tutorial.cpp): Basic usage of DOM API.
+
+* SAX API
+ * [simplereader](https://github.com/miloyip/rapidjson/blob/master/example/simplereader/simplereader.cpp): Dumps all SAX events while parsing a JSON by `Reader`.
+ * [condense](https://github.com/miloyip/rapidjson/blob/master/example/condense/condense.cpp): A command line tool to rewrite a JSON, with all whitespaces removed.
+ * [pretty](https://github.com/miloyip/rapidjson/blob/master/example/pretty/pretty.cpp): A command line tool to rewrite a JSON with indents and newlines by `PrettyWriter`.
+ * [capitalize](https://github.com/miloyip/rapidjson/blob/master/example/capitalize/capitalize.cpp): A command line tool to capitalize strings in JSON.
+ * [messagereader](https://github.com/miloyip/rapidjson/blob/master/example/messagereader/messagereader.cpp): Parse a JSON message with SAX API.
+ * [serialize](https://github.com/miloyip/rapidjson/blob/master/example/serialize/serialize.cpp): Serialize a C++ object into JSON with SAX API.
+ * [jsonx](https://github.com/miloyip/rapidjson/blob/master/example/jsonx/jsonx.cpp): Implements a `JsonxWriter` which stringify SAX events into [JSONx](https://www-01.ibm.com/support/knowledgecenter/SS9H2Y_7.1.0/com.ibm.dp.doc/json_jsonx.html) (a kind of XML) format. The example is a command line tool which converts input JSON into JSONx format.
+
+* Schema
+ * [schemavalidator](https://github.com/miloyip/rapidjson/blob/master/example/schemavalidator/schemavalidator.cpp) : A command line tool to validate a JSON with a JSON schema.
+ 
+* Advanced
+ * [prettyauto](https://github.com/miloyip/rapidjson/blob/master/example/prettyauto/prettyauto.cpp): A modified version of [pretty](https://github.com/miloyip/rapidjson/blob/master/example/pretty/pretty.cpp) to automatically handle JSON with any UTF encodings.
+ * [parsebyparts](https://github.com/miloyip/rapidjson/blob/master/example/parsebyparts/parsebyparts.cpp): Implements an `AsyncDocumentParser` which can parse JSON in parts, using C++11 thread.

readme.zh-cn.md

@@ -118,4 +118,23 @@ int main() {
 
 ![simpledom](doc/diagram/simpledom.png)
 
-还有许多[例子](https://github.com/miloyip/rapidjson/tree/master/example)可供参考。
+还有许多[例子](https://github.com/miloyip/rapidjson/tree/master/example)可供参考：
+
+* DOM API
+ * [tutorial](https://github.com/miloyip/rapidjson/blob/master/example/tutorial/tutorial.cpp): DOM API 的基本使用方法。
+
+* SAX API
+ * [simplereader](https://github.com/miloyip/rapidjson/blob/master/example/simplereader/simplereader.cpp): 使用 `Reader` 解析 JSON 时，打印所有 SAX 事件。
+ * [condense](https://github.com/miloyip/rapidjson/blob/master/example/condense/condense.cpp): 移除 JSON 中所有空白符的命令行工具。
+ * [pretty](https://github.com/miloyip/rapidjson/blob/master/example/pretty/pretty.cpp): 为 JSON 加入缩进与换行的命令行工具，当中使用了 `PrettyWriter`。
+ * [capitalize](https://github.com/miloyip/rapidjson/blob/master/example/capitalize/capitalize.cpp): 把 JSON 中所有字符串改为大写的命令行工具。
+ * [messagereader](https://github.com/miloyip/rapidjson/blob/master/example/messagereader/messagereader.cpp): 使用 SAX API 去解析一个 JSON 报文。
+ * [serialize](https://github.com/miloyip/rapidjson/blob/master/example/serialize/serialize.cpp): 使用 SAX API 去序列化 C++ 对象，生成 JSON。
+ * [jsonx](https://github.com/miloyip/rapidjson/blob/master/example/jsonx/jsonx.cpp): 实现了一个 `JsonxWriter`，它能把 SAX 事件写成 [JSONx](https://www-01.ibm.com/support/knowledgecenter/SS9H2Y_7.1.0/com.ibm.dp.doc/json_jsonx.html)（一种 XML）格式。这个例子是把 JSON 输入转换成 JSONx 格式的命令行工具。
+
+* Schema API
+ * [schemavalidator](https://github.com/miloyip/rapidjson/blob/master/example/schemavalidator/schemavalidator.cpp): 使用 JSON Schema 去校验 JSON 的命令行工具。
+ 
+* 进阶
+ * [prettyauto](https://github.com/miloyip/rapidjson/blob/master/example/prettyauto/prettyauto.cpp): [pretty](https://github.com/miloyip/rapidjson/blob/master/example/pretty/pretty.cpp) 的修改版本，可自动处理任何 UTF 编码的 JSON。
+ * [parsebyparts](https://github.com/miloyip/rapidjson/blob/master/example/parsebyparts/parsebyparts.cpp): 这例子中的`AsyncDocumentParser` 类使用 C++ 线程来逐段解析 JSON。