Simple docs (#25)

* Simple docs

Signed-off-by: Daniel Kastl <[email protected]>

Author: dkastl

README.md

@@ -49,7 +49,13 @@ More information on installing (and uninstalling) Redmine plugins can be found h
 
 ## How to use
 
-[Settings, screenshots, etc.]
+1. Go to plugin configuration for global settings
+2. Configure at least one tile source
+3. Enable `GTT` module in a project
+4. Define the project boundary in `GTT` project settings
+5. Create a new issue with a point, line or polygon
+
+For more information with screenshots see the [Getting Started](doc/getting-started.md) guide.
 
 ## Contributing and Support
 

doc/Issue 1 - GTT Project - Redmine.png

@@ -0,0 +1,61 @@
+# Getting Started with GTT plugin
+
+The following is a brief overview of the most important settings of the GTT plugin.
+
+## Plugin Settings
+
+Global settings can be specified in the plugin configuration `/settings/plugin/redmine_gtt`:
+
+![Plugin Settings](Redmine%20GTT%20plugin%20-%20Plugins%20-%20Redmine.png)
+
+**Note:** Geocoder options missing. TBD.
+
+## Tile Source
+
+At least one tile source needs to be configured to be used as a base map. The GTT plugin uses [OpenLayers](https://openlayers.org/) and accepts common OpenLayers layer types and layer options.
+
+![Tile Source](New%20Tile%20Source%20-%20Tile%20Sources%20-%20Redmine.png)
+
+### Example OSM base map
+
+* **Type**: `ol.source.OSM`
+* **Options**:
+
+```
+{
+  "url": "https://tile.openstreetmap.jp/{z}/{x}/{y}.png",
+  "custom": "19/34.74701/135.35740",
+  "crossOrigin": null,
+  "attributions": "<a href=\"https://www.openstreetmap.org/copyright\">OpenStreetMap</a>"
+}
+```
+
+## My Account
+
+A user can set their own location on the user page `/my/account`:
+
+![My Account](My%20account%20-%20Redmine.png)
+
+## Project Settings
+
+To use GTT in a project the `GTT` module must be enabled `/projects/new`:
+
+![GTT module](New%20project%20-%20Redmine.png)
+
+In the `GTT` tab of the project settings the project boundaries can be specified as a polygon:
+
+![Project settings](Settings%20-%20GTT%20Project%20-%20Redmine.png)
+
+## Creating Issues
+
+Create an issue with a location as `point`, `line` or `polygon`:
+
+![New issue](New%20issue%20-%20GTT%20Project%20-%20Redmine.png)
+
+Changes to an issue, including geometry updates, are available in the issue history:
+
+![History](Issue%201%20-%20GTT%20Project%20-%20Redmine.png)
+
+All issues can be displayed on the projects issues list together with a map:
+
+![All issues](Issues%20-%20GTT%20Project%20-%20Redmine.png)