update and fill in `message`

[lsp-test.git] / README.md

diff --git a/README.md b/README.md
index 17811a2468927418aa4b8608aaa902515a4b961c..dbf803cdb2eff01de2c22747e0d62b5c0a3269e3 100644 (file)
--- a/README.md
+++ b/README.md
@@ -35,7 +35,14 @@ anyRequest <|> anyResponse
 ```
 
 Try out the example tests in the `example` directory with `cabal test`.
-For more examples check the [Wiki](https://github.com/bubba/lsp-test/wiki/Introduction)
+For more examples check the [Wiki](https://github.com/bubba/lsp-test/wiki/Introduction), or see this [introductory blog post](https://lukelau.me/haskell/posts/lsp-test/).
+
+Whilst writing your tests you may want to debug them to see what's going wrong.
+You can set the `logMessages` and `logStdErr` options in `SessionConfig` to see what the server is up to.
+There are also corresponding environment variables so you can turn them on from the command line:
+```
+LSP_TEST_LOG_MESSAGES=1 LSP_TEST_LOG_STDERR=1 cabal test
+```
 
 ## Developing
 The tests for lsp-test use a dummy server found in `test/dummy-server/`.