Created Gantt (markdown)

Gantt.md

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+# How to use
+
+At cards, both Start and End dates should be set (not Due date) for the tasks to be displayed.
+
+# Funding for more features?
+
+You can fund development of more features of Gantt at https://wekan.team/commercial-support, like for example:
+- more of day/week/month/year views
+- drag etc
+
+# Issue
+
+https://github.com/wekan/wekan/issues/2870
+
+# Install
+
+Wekan GPLv2 Gantt version:
+- https://github.com/wekan/wekan-gantt-gpl
+- https://snapcraft.io/wekan-gantt-gpl
+- https://hub.docker.com/repository/docker/wekanteam/wekan-gantt-gpl
+- https://quay.io/wekan/wekan-gantt-gpl
+
+## How to install Snap
+
+[Like Snap install](https://github.com/wekan/wekan-snap/wiki/Install) but with commands like:
+```
+sudo snap install wekan-gantt-gpl
+
+sudo snap set wekan-gantt-gpl root-url='http://localhost'
+
+sudo snap set wekan-gantt-gpl port='80'
+```
+Stopping all:
+```
+sudo snap stop wekan-gantt-gpl
+```
+Stopping only some part:
+```
+sudo snap stop wekan-gantt-gpl.caddy
+
+sudo snap stop wekan-gantt-gpl.mongodb
+
+sudo snap stop wekan-gantt-gpl.wekan
+```
+
+## Changing from Wekan to Wekan Gantt GPL
+
+1) Install newest MongoDB to have also mongorestore available
+
+2) Backup database and settings:
+```
+sudo snap stop wekan.wekan
+
+mongodump --port 27019
+
+snap get wekan > snap-set.sh
+
+sudo snap remove wekan
+
+sudo snap install wekan-gantt-gpl
+
+sudo snap stop wekan-gantt-gpl.wekan
+
+nano snap-set.sh
+```
+Then edit that textfile so all commands will be similar to this:
+```
+sudo snap set wekan-gantt-gpl root-url='https://example.com'
+```
+And run settings:
+```
+chmod +x snap-set.sh
+
+./snap-set.sh
+
+sudo snap start wekan-gantt-gpl.wekan
+```
+## Changing from Wekan Gantt GPL to Wekan
+
+1) Install newest MongoDB to have also mongorestore available
+
+2) Backup database and settings:
+```
+sudo snap stop wekan-gantt-gpl.wekan
+
+mongodump --port 27019
+
+snap get wekan-gantt-gpl > snap-set.sh
+
+sudo snap remove wekan-gantt-gpl
+
+sudo snap install wekan
+
+sudo snap stop wekan.wekan
+
+nano snap-set.sh
+```
+Then edit that textfile so all commands will be similar to this:
+```
+sudo snap set wekan root-url='https://example.com'
+```
+And run settings:
+```
+chmod +x snap-set.sh
+
+./snap-set.sh
+
+sudo snap start wekan.wekan
+```