feat(intro): add "Introduction" section

* add "Introduction" section
* update dist formats

Author: PauloASilva

2019/en/dist/owasp-api-security-top-10.odt

@@ -1,2 +1,29 @@
 Introduction
 ============
+
+## Welcome to the OWASP API Security Top 10 - 2019!
+
+Welcome to the OWASP API Security Top 10 first edition. If you're familiar with
+the  OWASP Top 10 series, you'll notice the similarities: they are intended for
+readability and adoption. Otherwise, consider visiting the [OWASP API Security
+Project wiki page][1], before digging deeper into the then most critical API
+security risks.
+
+APIs play a very important role in modern applications architecture.
+Because creating security awareness and innovation have different paces, it
+urges to focus on common API security weaknesses.
+
+The primary aim of the OWASP API Security Top 10 is to educate those involved
+in API development and maintenance being them developers, designers, architects,
+managers, or organizations.
+
+In the [Methodology and Data][2] section you can read more about how this first
+edition was created. In future versions, we want to involve the security
+industry, with a public call for data. For now, we encourage everyone to
+contribute with questions, comments and ideas at our [GitHub repository][3] or
+[Mailing list][4].
+
+[1]: https://www.owasp.org/index.php/OWASP_API_Security_Project
+[2]: ./0xd0-about-data.md
+[3]: https://github.com/OWASP/API-Security
+[4]: https://groups.google.com/a/owasp.org/forum/#!forum/api-security-project