Other README/CONTRIBUTING tweaks

CONTRIBUTING.md

@@ -10,14 +10,15 @@ If you implemented a bugfix, a new feature, or updated the docs/tests feel free
 
 1. Fork the repository
 1. Install the dependencies & run locally
-   - `bundle install`
-   - `bundle exec puma -p 4567`
+   - `shards install`
+   - `crystal run src/server.cr`
 1. Create your feature branch
    - `git checkout -b my-new-feature`
 1. Work on your fix/feature
    - Add tests to avoid regressions in the future
 1. Run the tests
-   - `bundle exec rspec`
+   - `KEMAL_ENV=test crystal spec`
+   - `SAFELIST="fdo.cr github.com" KEMAL_ENV=test crystal spec`
 1. Commit your changes
    - `git commit -am 'Added some feature'`
 1. Push to the branch

README.md

@@ -36,7 +36,7 @@ If this service adds value to you or your company please consider sponsoring me
 
 ## Self host
 
-The project makes it easy for you to self host an UDL Server. The easiest and recommended way to do this is to:
+The project makes it easy for you to self host a UDL Server. The easiest and recommended way to do this is to:
 
 1. Fork this repository
 1. Configure a PaaS to automatically deploy from your fork repository
@@ -63,7 +63,7 @@ The project makes it easy for you to self host an UDL Server. The easiest and re
 
 Alternatively you can run the lightweight [`fdocr/udl-server`](https://hub.docker.com/repository/docker/fdocr/udl-server/general) Docker container on your own. At the time of this writing the docker image is only about `26.3 MB` in size (`10.87 MB` compressed).
 
-### Troubleshooting
+## Troubleshooting
 
 Some common details to keep in mind in case your redirects aren't working properly:
 
@@ -80,7 +80,7 @@ The project is now ported to [Crystal](https://crystal-lang.org/) and [Kemal fra
 
 ![diagram](nanosecond-response-times.png)
 
-I'm aiming to work on adding a bunch of other features to the project and [share blog posts](https://fdo.cr/blog) with walkthroughs/benchmarks/etc. Feel free to tag along and submit feature requests in the issue tracker!
+I'm aiming to work on adding a bunch of other features to the project and [share blog posts](https://fdo.cr/blog) with walkthroughs/benchmarks/etc. Feel free to tag along and submit feature requests in the issue tracker.
 
 ## Contributing