Update instrumentation_tutorial.md (#853)
Fix typo "quailied"
diff --git a/docs/instrumentation_tutorial.md b/docs/instrumentation_tutorial.md
index 46036ea..e88b96c 100644
--- a/docs/instrumentation_tutorial.md
+++ b/docs/instrumentation_tutorial.md
@@ -124,7 +124,7 @@
If you have a custom runner that you use for instrumentation tests, then you can
specify it in the *run_instrumentation_test* method call. Replace
-`com.example.package.test.CustomRunner` with the fully quailied package name of
+`com.example.package.test.CustomRunner` with the fully qualified package name of
your real instrumentation runner.
```python
