Merge pull request #26 from johnfawole/mapping---issue-#19

Mapping   issue #19

Author: Genesis3800

info-articles/Mapping in solidity - issue #19.md/About.md

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+## Byline
+
+John is a technical blockchain writer who breaks down the complexity of blockchain into simplicity; one article at a time. When
+he is less busy, he codes smart contracts and drink tea.
+
+### socials
+
+[Twitter](https://twitter.com/jofawole) 
+[LinkedIn](https://www.linkedin.com/in/johnfawole/)
+
+### Profile picture
+![John Fawole](.download/headshot.jpg)