cleaning up some codacity warnings

README.md

@@ -3,6 +3,7 @@ UAVCAN stack in C++
 
 [![Build Status](https://badge.buildkite.com/af844974c06af6406e3b2192d98298b02b30f6ebebb5f8b16c.svg)](https://buildkite.com/uavcan/libuavcan-v1)
 [![Forum](https://img.shields.io/discourse/https/forum.uavcan.org/users.svg)](https://forum.uavcan.org)
+[![Codacy Badge](https://api.codacy.com/project/badge/Grade/5d487b332d99498699a0af687fa513a1)](https://www.codacy.com/app/UAVCAN/libuavcan_v1?utm_source=github.com&utm_medium=referral&utm_content=UAVCAN/libuavcan&utm_campaign=Badge_Grade)
 
 Portable reference implementation of the [UAVCAN protocol stack](https://new.uavcan.org) in C++ for embedded systems, Linux, and POSIX-compliant RTOSs.
 

docker/Dockerfile

@@ -1,7 +1,7 @@
 #
 # Builds a docker image for test and validation builds.
 #
-FROM uavcan/libuavcan
+FROM uavcan/libuavcan:latest
 
 VOLUME /repo
 

docker/README.md

@@ -7,7 +7,7 @@ for development, continuous-integration, and test automation.
 
 (these instructions assume you have docker installed and running)
 
-```
+```bash
 cd /path/to/libuavcan
 
 docker pull uavcan/libuavcan:latest
@@ -21,23 +21,23 @@ docker run --rm -t -v /path/to/libuavcan/build:/repo uavcan/libuavcan:latest /bi
 
 On macintosh you'll probably want to optimize osxfs with something like cached or delegated:
 
-```
+```bash
 docker run --rm -t -v /path/to/libuavcan/build:/repo:delegated uavcan/libuavcan:latest /bin/sh -c 'cd build_docker && mkdir make -j8'
 ```
 
 See ["Performance tuning for volume mounts"](https://docs.docker.com/docker-for-mac/osxfs-caching/) for details.
 
 Finally, to enter an interactive shell in this container something like this should work:
 
-```
+```bash
 docker run --rm -it -v /path/to/libuavcan:/repo uavcan/libuavcan:latest
 ```
 
 ## Travis CI
 
 You can use this in your .travis.yml like this:
 
-```
+```bash
 language: cpp
 
 services:
@@ -55,16 +55,16 @@ script:
 
 These instructions are for maintainers with permissions to push to the [uavcan organization on Docker Hub](https://cloud.docker.com/u/uavcan).
 
-```
+```bash
 docker build .
 ```
-```
+```bash
 docker images
 
 REPOSITORY   TAG      IMAGE ID       CREATED              SIZE
 <none>       <none>   736647481ad3   About a minute ago   1GB
 ```
-```
+```bash
 docker tag 736647481ad3 uavcan/libuavcan:latest
 docker login --username=yourhubusername
 docker push uavcan/libuavcan:latest