diff --git a/README.md b/README.md
index ace2339d..973421fe 100644
--- a/README.md
+++ b/README.md
@@ -690,7 +690,7 @@ See https://github.com/n1trux/awesome-sysadmin#distributed-filesystems
 ## Learning and Courses
 
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-  
+
   * [Canvas LMS](https://www.canvaslms.com/) - Canvas is the trusted, open-source learning management system (LMS) that is revolutionizing the way we educate. ([Demo](https://canvas.instructure.com/register), [Source Code](https://github.com/instructure/canvas-lms)) `AGPLv3` `Ruby`
   * [Chamilo LMS](https://chamilo.org/chamilo-lms/) - Chamilo LMS allows you to create a virtual campus for the provision of online or semi-online training. ([Source Code](https://github.com/chamilo/chamilo-lms)) `GPLv3` `PHP`
   * [edX](https://www.edx.org/) - The Open edX platform is open-source code that powers [edX.org](https://www.edx.org/). ([Source Code](https://github.com/edx/)) `AGPLv3` `Python`
@@ -823,6 +823,7 @@ See https://github.com/n1trux/awesome-sysadmin#monitoring and https://github.com
 *See also [Wikis](#wikis)*
 
   * [dillinger](http://dillinger.io/) - The last Markdown editor, ever. ([Source Code](https://github.com/joemccann/dillinger/)) `MIT` `Nodejs`
+  * [HackMD](https://hackmd.io) - A feature-rich collaborative online markdown editor. ([Source Code](https://github.com/hackmdio/hackmd/)) `MIT` `Nodejs/Docker`
   * [Laverna](https://laverna.cc/) - Laverna is a Javascript note taking application with Markdown editor and encryption support. Consider it like open source alternative to Evernote. ([Demo](https://laverna.cc/index.html#notes), [Source Code](https://github.com/Laverna/laverna)) `MPLv2` `Nodejs`
   * [Leanote](http://leanote.org/) - Leanote, Not Just A Notepad! Open source cloud notepad. ([Demo](https://leanote.com/note), [Source Code](https://github.com/leanote/leanote)) `GPLv2` `Go`
   * [Markdown Edit](http://georgeosddev.github.com/markdown-edit/) - Online markdown editor/viewer. ([Source Code](https://github.com/georgeOsdDev/markdown-edit)) `MIT` `HTML5`
@@ -888,7 +889,7 @@ See https://github.com/n1trux/awesome-sysadmin#monitoring and https://github.com
   * [tastebin](https://github.com/andreineculau/tastebin) - Updated version of hastebin plus additional features. `Apache` `Nodejs`
 
 
-## Personal Dashboards 
+## Personal Dashboards
 See https://github.com/n1trux/awesome-sysadmin#metric--metric-collection
 
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@@ -1059,7 +1060,7 @@ See also [Static site generators](#static-site-generators)
   * [Read the Docs](https://docs.readthedocs.org/en/latest/install.html) - Host documentation, making it fully searchable and easy to find; import your docs using any major version control system, including Mercurial, Git, Subversion, and Bazaar. ([Demo](https://readthedocs.org/projects/), [Source Code](https://github.com/rtfd/readthedocs.org)) `MIT` `Python`
 
 ### Localization
- 
+
   * [Parrot](http://anthonynsimon.com/parrot.github.io/) - Self-hosted Localization Management Platform built with Go and Angular 2.. ([Source Code](https://github.com/anthonynsimon/parrot)) `MIT` `Go`
   * [Pootle](http://pootle.translatehouse.org) - Online translation and localization tool. ([Source Code](https://github.com/translate/pootle)) `GPLv3` `Python`
   * [Weblate](https://weblate.org) - Web-based translation tool with tight version control integration. ([Demo](https://demo.weblate.org), [Source Code](https://github.com/WeblateOrg/weblate)) `GPLv3` `Python`