Add reference to compiler manual in Testing Guide (#758)

crystal-lang · Apr 27, 2024 · ff32978 · ff32978
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diff --git a/docs/guides/testing.md b/docs/guides/testing.md
@@ -196,6 +196,8 @@ crystal spec --tag 'fast'
 crystal spec --tag '~slow'
 ```
 
+There are additional options for running specs by name, adjusting output formats, doing dry-runs, etc, see [Using the compiler](../man/crystal/README.md#crystal-spec).
+
 ## Spec helper
 
 Many projects use a custom spec helper file, usually named `spec/spec_helper.cr`.