Update tests readme

DiscordChatExporter.Cli.Tests/Readme.md

@@ -6,12 +6,12 @@ In order to run these tests locally, you need to join the test server and config
 1. Join the server: https://discord.gg/eRV8Vap5bm
 2. Locate your Discord authentication token
 3. Specify your token using a file or an environment variable:
-  - **Using a file**: put your token in a new `DiscordToken.secret` file created in this directory
+    - **Using a file**: put your token in a new `DiscordToken.secret` file created in this directory
-  - **Using an environment variable**: set `DISCORD_TOKEN` variable to your token
+    - **Using an environment variable**: set `DISCORD_TOKEN` variable to your token
 4. Run the tests: `dotnet test`
 
-> 🟣 If you're submitting a pull request, you don't _have_ to run the tests locally -- they are executed automatically by CI.
+> If you're submitting a pull request, you don't _have_ to run the tests locally -- they are executed automatically by CI.
 Running them locally can still sometimes be useful for debugging purposes though.
  
-> 🟣 If you want to have a new test case or a scenario added, please let me know in your pull request.
+> If you want to have a new test case or a scenario added, please let me know in your pull request.
 Currently, it's not possible to add them by yourself.