docs: add newsletter badge
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		| @@ -14,7 +14,8 @@ | |||||||
| [](https://sonarcloud.io/dashboard?id=wiki) | [](https://sonarcloud.io/dashboard?id=wiki) | ||||||
| [](http://standardjs.com/)   | [](http://standardjs.com/)   | ||||||
| [](https://gitter.im/Requarks/wiki) | [](https://gitter.im/Requarks/wiki) | ||||||
| [](https://twitter.com/requarks) | [](https://twitter.com/requarks) | ||||||
|  | [](https://wiki.requarks.io/newsletter) | ||||||
|  |  | ||||||
| ##### A modern, lightweight and powerful wiki app built on NodeJS | ##### A modern, lightweight and powerful wiki app built on NodeJS | ||||||
|  |  | ||||||
|   | |||||||
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