public static Reader<String> text() {
		return new TextReader();
	}
Return a {@code Reader} for reading the text of an element.
<p>
<b>XML</b>
<pre> {@code <element>1234<element>}

<b>Reader definition</b>
{@snippet lang="java":
final Reader<Integer> reader =
    elem(
        v -> (Integer)v[0],
        "element",
        text().map(Integer::parseInt)
    );
} </pre>

@return an element text reader
jenetics.xml/src/main/java/io/jenetics/xml/stream/Reader.java