Updated readme to md, more detail

Author: jhy

README

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+# jsoup: Java HTML Parser
+
+**jsoup** is a Java library for working with real-world HTML. It provides a very convenient API for extracting and manipulating data, using the best of DOM, CSS, and jquery-like methods.
+
+
+**jsoup** implements the [WHATWG HTML5](http://whatwg.org/html) specification, and parses HTML to the same DOM as modern browsers do.
+
+* scrape and [parse](https://jsoup.org/cookbook/input/parse-document-from-string) HTML from a URL, file, or string
+* find and [extract data](https://jsoup.org/cookbook/extracting-data/selector-syntax), using DOM traversal or CSS selectors
+* manipulate the [HTML elements](https://jsoup.org/cookbook/modifying-data/set-html), attributes, and text
+* [clean](https://jsoup.org/cookbook/cleaning-html/whitelist-sanitizer) user-submitted content against a safe white-list, to prevent XSS attacks
+* output tidy HTML
+
+jsoup is designed to deal with all varieties of HTML found in the wild; from pristine and validating, to invalid tag-soup; jsoup will create a sensible parse tree.
+
+See [**jsoup.org**](https://jsoup.org/) for downloads and the full [API documentation](https://jsoup.org/apidocs/).
+
+## Example
+Fetch the [Wikipedia](http://en.wikipedia.org/wiki/Main_Page) homepage, parse it to a [DOM](https://developer.mozilla.org/en-US/docs/Web/API/Document_Object_Model/Introduction), and select the headlines from the *In the News* section into a list of [Elements](https://jsoup.org/apidocs/index.html?org/jsoup/select/Elements.html) ([online sample](https://try.jsoup.org/~LGB7rk_atM2roavV0d-czMt3J_g)):
+
+```java
+Document doc = Jsoup.connect("http://en.wikipedia.org/").get();
+Elements newsHeadlines = doc.select("#mp-itn b a");
+```
+
+## Open source
+jsoup is an open source project distributed under the liberal [MIT license](https://jsoup.org/license). The source code is available at [GitHub](https://github.com/jhy/jsoup/tree/master/src/main/java/org/jsoup).
+
+## Getting started
+1. [Download](https://jsoup.org/download) the latest jsoup jar (or it add to your Maven/Gradle build)
+2. Read the [cookbook](https://jsoup.org/cookbook/)
+3. Enjoy!
+
+## Development and support
+If you have any questions on how to use jsoup, or have ideas for future development, please get in touch via the [mailing list](https://jsoup.org/discussion).
+
+If you find any issues, please file a [bug](https://jsoup.org/bugs) after checking for duplicates.
+
+The [colophon](https://jsoup.org/colophon) talks about the history of and tools used to build jsoup.
+
+## Status
+jsoup is in general, stable release.