README examples updated.

Author: remorhaz

README.md

@@ -30,9 +30,10 @@ composer require remorhaz/php-json-pointer
 Pointer utilizes JSON data accessor interfaces defined in package
 **[remorhaz/php-json-data](https://github.com/remorhaz/php-json-data)**. Read more about them in package documentation.
 There is a ready-to-work implementation in that package that works with native PHP structures (like the ones you get as
-a result of `json_decode` function). You can use `RawSelectableReader` class for read-only operations like _test_ and
-_read_, or `RawSelectableWriter` class for all operations. You can also implement your own accessors if you need to work
-with another sort of data (like unparsed JSON text, for example).
+a result of `json_decode` function). You can use `Remorhaz\JSON\Data\Reference\Reader` class to pass values that don't
+need any selection or modification, or `Remorhaz\JSON\Data\Reference\Selector` class to select data in read-only mode,
+or `Remorhaz\JSON\Data\Reference\Writer` class to modify data. You can also implement your own accessors if you need
+to work with another sort of data (like unparsed JSON text, for example).
 
 ## Using pointer
 To access data with JSON Pointer links you need just 3 simple steps:
@@ -46,8 +47,9 @@ of accessor bound to source data for `add()` and `replace()` operations.
 ```php
 <?php
 
-use \Remorhaz\JSON\Data\RawSelectableReader;
-use \Remorhaz\JSON\Data\RawSelectableWriter;
+use \Remorhaz\JSON\Data\Reference\Reader;
+use \Remorhaz\JSON\Data\Reference\Selector;
+use \Remorhaz\JSON\Data\Reference\Writer;
 use \Remorhaz\JSON\Pointer\Pointer;
 
 // Setting up data.
@@ -58,29 +60,29 @@ $data = (object) [
 ];
 
 // Setting up read-only pointer.
-$reader = new RawSelectableReader($data);
+$reader = new Selector($data);
 $readPointer = new Pointer($reader);
 
 // Reading value.
-echo $readPointer->read("/a/b/1")->getData();  // d
+echo $readPointer->read("/a/b/1")->getAsString();  // d
 
 // Testing value.
 $trueResult = $readPointer->test("/a/b/1"); // Sets $trueResult to TRUE (value exists).
 $falseResult = $readPointer->test("/a/c"); // Sets $falseResalt to FALSE (value doesn't exist).
 
 // Setting up writable pointer.
-$writer = new RawSelectableWriter($data);
+$writer = new Writer($data);
 $writePointer = new Pointer($writer);
 
 // Appending element to array.
 $value = 'f';
-$valueReader = new RawSelectableReader($value);
+$valueReader = new Reader($value);
 $writePointer->replace("/a/b/1", $valueReader); // Sets $data->a->b to ['c', 'f', 'e'].
 $value = 'g';
-$valueReader = new RawSelectableReader($value);
+$valueReader = new Reader($value);
 $writePointer->add("/a/c", $valueReader); // Adds $data->a->c property and sets it to 'g'.
 $writePointer->remove("/a/b/0"); // Sets $data->a->b to ['f', 'e'].
 $value = 'h';
-$valueReader = new RawSelectableReader($value);
+$valueReader = new Reader($value);
 $writePointer->add("/a/b/-", $valueReader); // Sets $data->a->b to ['f', 'e', 'h'].
 ```