Update test script and documentation.

test/Readme.md

@@ -5,6 +5,7 @@ Vimwiki functionality. It is based on the following tools:
 
 - [vim-testbed](https://github.com/tweekmonster/vim-testbed)
 - [Vader](https://github.com/junegunn/vader.vim)
+- [Vint](https://github.com/Kuniwak/vint)
 
 ## Resources
 
@@ -15,12 +16,37 @@ Vimwiki functionality. It is based on the following tools:
     - [ale](https://github.com/w0rp/ale/tree/master/test)
     - [Other projects](https://github.com/junegunn/vader.vim/wiki/Projects-using-Vader)
 
-## Manual Steps
+## Building Docker Image
 
 To build the Docker image run `docker build -t vimwiki` from the Vimwiki
 repository root (same location as the Dockerfile).
 
-To start the tests run `docker run -it --rm -v $PWD:/testplugin -v $PWD/test:/home vimwiki vim-v7.4.1099 -u test/vimrc -i NONE '+Vader! test/*'`
-also from the repository root.
+## Running Tests
 
-    - Substitute `vim-v7.4.1099` for any of the vim versions in the Dockerfile.
+### Manual Steps
+
+Starting in the test directory run this command:
+
+```sh
+docker run -it --rm -v $PWD/../:/testplugin -v $PWD/../test:/home vimwiki vim_7.4.1099 -u test/vimrc -i NONE
+```
+
+This will open a vim instance in the docker container and then all tests
+can be run with `:Vader test/*` or individual tests can be run.
+
+**Note:** Substitute `vim_7.4.1099` for any of the vim versions in the Dockerfile.
+
+### Automated Tests
+
+The script in the `test/` directory named `run_test.sh` can be used to
+automatically run all tests for all installed vim versions. The vim/nvim
+versions are parsed from the Dockerfile. This script will also run `Vint` for all
+plugin source files. For more information run `./run_tests.sh -h`.
+
+## Known Issues
+
+1. neovim v0.2.x does not work correctly with Vader output from the docker
+   container. No test results are printed and an error message saying
+   `Vim: Error reading input, exiting...`
+    - Probably need to look into this more and determine if the issue is Vader,
+      Neovim, or Docker.