Introduce new, Hugo templates based, website (#713)

* Add new hugo-based website for hawkBit

Signed-off-by: Jeroen Laverman <jeroen.laverman@bosch-si.com>

* Fix broken links + wordings
- , i.e. -> i.e,
- , e.g. -> e.g.,
- hawkbit -> hawkBit
- don't -> do not
- isn't -> is not

Signed-off-by: Jeroen Laverman <jeroen.laverman@bosch-si.com>

* Remove old documentation and add maven integration

Signed-off-by: Jeroen Laverman <jeroen.laverman@bosch-si.com>

* Add Intellij files to ignore

Signed-off-by: Jeroen Laverman <jeroen.laverman@bosch-si.com>

* Update README

Signed-off-by: Jeroen Laverman <jeroen.laverman@bosch-si.com>

* Update Copyright header
* exclude website artifacts

Signed-off-by: Jeroen Laverman <jeroen.laverman@bosch-si.com>

* Harmonize usage of i.e. and e.g.

Signed-off-by: Jeroen Laverman <jeroen.laverman@bosch-si.com>

* Add remark for windows user

Signed-off-by: Jeroen Laverman <jeroen.laverman@bosch-si.com>

* Fix indention

Signed-off-by: Jeroen Laverman <jeroen.laverman@bosch-si.com>

* Introduce review findings

Signed-off-by: Jeroen Laverman <jeroen.laverman@bosch-si.com>

* Change image in 'run hawkbit' guide

Signed-off-by: Jeroen Laverman <jeroen.laverman@bosch-si.com>

docs/content/gettingstarted.md

@@ -0,0 +1,57 @@
+---
+title: Getting Started
+weight: 20
+---
+
+## From Docker Image
+
+### Update server only
+
+```sh
+$ docker run -d -p 8080:8080 hawkbit/hawkbit-update-server
+```
+
+### Updates server + MySql + RabbitMq
+
+```sh
+$ git clone https://github.com/eclipse/hawkbit.git
+$ cd hawkbit/hawkbit-runtime/hawkbit-update-server/docker
+$ docker-compose up -d
+```
+
+## From Sources
+
+### Clone and build hawkBit
+```sh
+$ git clone https://github.com/eclipse/hawkbit.git
+$ cd hawkbit
+$ mvn clean install
+```
+
+### Start hawkBit 
+[update server](https://github.com/eclipse/hawkbit/tree/master/hawkbit-runtime/hawkbit-update-server)
+
+```sh
+$ java -jar ./hawkbit-runtime/hawkbit-update-server/target/hawkbit-update-server-#version#-SNAPSHOT.jar
+```
+
+### Build hawkBit examples
+
+```sh
+$ git clone https://github.com/eclipse/hawkbit-examples.git
+$ cd hawkbit-examples
+$ mvn clean install
+```
+
+### Start hawkBit device simulator
+[Device Simulator](https://github.com/eclipse/hawkbit-examples/tree/master/hawkbit-device-simulator)
+```sh
+$ java -jar ./hawkbit-device-simulator/target/hawkbit-device-simulator-#version#.jar
+```
+
+### Generate Getting Started data
+[Example Management API Client](https://github.com/eclipse/hawkbit-examples/tree/master/hawkbit-example-mgmt-simulator)
+
+```sh
+$ java -jar ./hawkbit-example-mgmt-simulator/target/hawkbit-example-mgmt-simulator-#version#.jar
+```