Remove some markdown linter warnings

README.md

@@ -2,7 +2,9 @@
 [![Join the chat at https://gitter.im/hypriot/talk](https://badges.gitter.im/hypriot/talk.svg)](https://gitter.im/hypriot/talk?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 [![Build Status](https://travis-ci.org/hypriot/image-builder-rpi.svg)](https://travis-ci.org/hypriot/image-builder-rpi)
 
-This repo builds the SD card image with HypriotOS for the Raspberry Pi 1, 2, 3 and Zero. You can find released versions of the SD card image here in the GitHub releases page. To build this SD card image we have to
+This repo builds the SD card image with HypriotOS for the Raspberry Pi 1, 2, 3
+and Zero. You can find released versions of the SD card image here in the GitHub
+releases page. To build this SD card image we have to
 
  * take the files for the root filesystem from [`os-rootfs`](https://github.com/hypriot/os-rootfs)
  * take the empty raw filesystem from [`image-builder-raw`](https://github.com/hypriot/image-builder-raw) with the two partitions
@@ -16,12 +18,18 @@ Here is an example how all the GitHub repos play together:
 
 ## Contributing
 
-You can contribute to this repo by forking it and sending us pull requests. Feedback is always welcome!
+You can contribute to this repo by forking it and sending us pull requests.
+Feedback is always welcome!
 
 You can build the SD card image locally with Vagrant.
 
 ### Setting up build environment
-Make sure you have [vagrant](https://docs.vagrantup.com/v2/installation/) and [docker-machine](https://docs.docker.com/machine/install-machine/) installed. Then run the following command to create the Vagrant box and the Docker Machine connection. The Vagrant box is needed as a vanilla boot2docker VM is not able to run guestfish inside. Use `export VAGRANT_DEFAULT_PROVIDER=virtualbox` to strictly create a VirtualBox VM.
+
+Make sure you have [vagrant](https://docs.vagrantup.com/v2/installation/) and [docker-machine](https://docs.docker.com/machine/install-machine/) installed.
+Then run the following command to create the Vagrant box and the Docker Machine
+connection. The Vagrant box is needed as a vanilla boot2docker VM is not able to
+run guestfish inside. Use `export VAGRANT_DEFAULT_PROVIDER=virtualbox` to
+strictly create a VirtualBox VM.
 
 ```bash
 make docker-machine
@@ -35,40 +43,48 @@ eval $(docker-machine env image-builder-rpi)
 
 ### Build the SD card image
 
-From here you can just make the SD card image. The output will be written and compressed to `hypriotos-rpi-dirty.img.zip`.
+From here you can just make the SD card image. The output will be written and
+compressed to `hypriotos-rpi-dirty.img.zip`.
 
 ```bash
 make sd-image
 ```
 
 ### Run Serverspec tests
 
-To test the compressed SD card image with [Serverspec](http://serverspec.org) just run the following command. It will expand the SD card image in a Docker container and run the Serverspec tests in `builder/test/` folder against it.
+To test the compressed SD card image with [Serverspec](http://serverspec.org)
+just run the following command. It will expand the SD card image in a Docker
+container and run the Serverspec tests in `builder/test/` folder against it.
 
 ```bash
 make test
 ```
 
 ### Run integration tests
 
-Now flash the SD card image and boot up a Raspberry Pi. Run the [Serverspec](http://serverspec.org) integration tests in `builder/test-integration/` folder against your Raspberry Pi. Set the environment variable `BOARD` to the IP address or host name of your running Raspberry Pi.
+Now flash the SD card image and boot up a Raspberry Pi. Run the [Serverspec](http://serverspec.org) integration tests in `builder/test-integration/`
+folder against your Raspberry Pi. Set the environment variable `BOARD` to the
+IP address or host name of your running Raspberry Pi.
 
 ```bash
 flash hypriotos-rpi-dirty.img.zip
 BOARD=black-pearl.local make test-integration
 ```
 
-This test works with any Docker Machine, so you do not need to create the Vagrant box.
+This test works with any Docker Machine, so you do not need to create the
+Vagrant box.
 
 ## Deployment
 
-For maintainers of this project you can release a new version and deploy the SD card image to GitHub releases with
+For maintainers of this project you can release a new version and deploy the
+SD card image to GitHub releases with
 
 ```bash
 TAG=v0.0.1 make tag
 ```
 
-After that open the GitHub release of this version and fill it with relevant changes and links to resolved issues.
+After that open the GitHub release of this version and fill it with relevant
+changes and links to resolved issues.
 
 ## License