[CARBONDATA-3095] Optimize the documentation of SDK/CSDK

update the doc

update doc

docs/csdk-guide.md

@@ -53,7 +53,20 @@ C++ SDK support read batch row. User can set batch by using withBatch(int batch)
      * @return CarbonReaderBuilder object
      */
     jobject builder(JNIEnv *env, char *path, char *tableName);
+```
+
+```
+    /**
+     * create a CarbonReaderBuilder object for building carbonReader,
+     * CarbonReaderBuilder object  can configure different parameter
+     *
+     * @param env JNIEnv
+     * @param path data store path
+     * */
+    void builder(JNIEnv *env, char *path);
+```
 
+```
     /**
      * Configure the projection column names of carbon reader
      *
@@ -62,7 +75,9 @@ C++ SDK support read batch row. User can set batch by using withBatch(int batch)
      * @return CarbonReaderBuilder object
      */
     jobject projection(int argc, char *argv[]);
+```
 
+```
     /**
      *  build carbon reader with argument vector
      *  it support multiple parameter
@@ -74,50 +89,68 @@ C++ SDK support read batch row. User can set batch by using withBatch(int batch)
      * @return CarbonReaderBuilder object
      **/
     jobject withHadoopConf(int argc, char *argv[]);
+```
 
+```
    /**
-     * set batch size
+     * Sets the batch size of records to read
      *
      * @param batch batch size
      * @return CarbonReaderBuilder object
      */
     void withBatch(int batch);
+```
+
+```
+    /**
+     * Configure Row Record Reader for reading.
+     */
+    void withRowRecordReader();
+```
 
+```
     /**
      * build carbonReader object for reading data
      * it support read data from load disk
      *
      * @return carbonReader object
      */
     jobject build();
+```
 
+```
     /**
      * Whether it has next row data
      *
      * @return boolean value, if it has next row, return true. if it hasn't next row, return false.
      */
     jboolean hasNext();
+```
 
+```
     /**
      * read next carbonRow from data
      * @return carbonRow object of one row
      */
      jobject readNextRow();
+```
 
+```
     /**
      * read Next Batch Row
      *
      * @return rows
      */
     jobjectArray readNextBatchRow();
+```
 
+```
     /**
      * close the carbon reader
      *
      * @return  boolean value
      */
     jboolean close();
-
 ```
 
 # C++ SDK Writer
@@ -148,6 +181,7 @@ release the memory and destroy JVM.
      */
     void builder(JNIEnv *env);
 ```
+
 ```
     /**
      * Sets the output path of the writer builder
@@ -158,6 +192,7 @@ release the memory and destroy JVM.
      */
     void outputPath(char *path);
 ```
+
 ```
     /**
      * configure the schema with json style schema
@@ -167,22 +202,25 @@ release the memory and destroy JVM.
      */
     void withCsvInput(char *jsonSchema);
 ```
+
 ```
     /**
-    * configure parameter, including ak,sk and endpoint
+    * Updates the hadoop configuration with the given key value
     *
     * @param key key word
     * @param value value
     * @return CarbonWriterBuilder object
     */
     void withHadoopConf(char *key, char *value);
 ```
+
 ```
     /**
      * @param appName appName which is writing the carbondata files
      */
     void writtenBy(char *appName);
 ```
+
 ```
     /**
      * build carbonWriter object for writing data
@@ -192,6 +230,7 @@ release the memory and destroy JVM.
      */
     void build();
 ```
+
 ```
     /**
      * Write an object to the file, the format of the object depends on the
@@ -200,6 +239,7 @@ release the memory and destroy JVM.
      */
     void write(jobject obj);
 ```
+
 ```
     /**
      * close the carbon Writer
@@ -217,6 +257,7 @@ release the memory and destroy JVM.
      */
     CarbonSchemaReader(JNIEnv *env);
 ```
+
 ```
     /**
      * read schema from path,
@@ -228,6 +269,7 @@ release the memory and destroy JVM.
      */
     jobject readSchema(char *path);
 ```
+
 ```
     /**
      *  read schema from path,
@@ -250,17 +292,17 @@ release the memory and destroy JVM.
      * @param schema  carbon schema data
      */
     Schema(JNIEnv *env, jobject schema);
-
 ```
+
 ```
     /**
      * get fields length of schema
      *
      * @return fields length
      */
     int getFieldsLength();
-
 ```
+
 ```
     /**
      * get field name by ordinal
@@ -269,8 +311,8 @@ release the memory and destroy JVM.
      * @return ordinal field name
      */
     char *getFieldName(int ordinal);
-
 ```
+
 ```
     /**
      * get  field data type name by ordinal
@@ -279,8 +321,8 @@ release the memory and destroy JVM.
      * @return ordinal field data type name
      */
     char *getFieldDataTypeName(int ordinal);
-
 ```
+
 ```
     /**
      * get  array child element data type name by ordinal
@@ -289,4 +331,47 @@ release the memory and destroy JVM.
      * @return ordinal array child element data type name
      */
     char *getArrayElementTypeName(int ordinal);
-```
+```
+
+###CarbonProperties
+```
+  /**
+     * Constructor of CarbonProperties
+     *
+     * @param env JNI env
+     */
+    CarbonProperties(JNIEnv *env);
+```
+
+```
+    /**
+     * This method will be used to add a new property
+     * 
+     * @param key property key
+     * @param value property value
+     * @return CarbonProperties object
+     */
+    jobject addProperty(char *key, char *value);
+```
+
+```
+    /**
+     * This method will be used to get the properties value
+     *
+     * @param key  property key
+     * @return  property value
+     */
+    char *getProperty(char *key);
+```
+
+```
+    /**
+     * This method will be used to get the properties value
+     * if property is not present then it will return the default value
+     *
+     * @param key  property key
+     * @param defaultValue  property default Value
+     * @return
+     */
+    char *getProperty(char *key, char *defaultValue);
+```