Encountered issue with editor view (#645)

I believe this issue was caused by my exercising new feature at https://code.visualstudio.com/updates/v1_58#_terminals-in-the-editor-area
Altho I had to mess around to get things going, so not 100% sure

Author: pwright

docs/troubleshooting.md

@@ -1,3 +1,11 @@
+# What do you do if Didact tutorials don't run
+
+Check that the default terminal location is set to `view` to avoid an issue with tutorials appearing in `editor` views:
+
+1.  Go to the Settings (`File->Preferences->Settings`)
+2.  Navigate to `Features->Terminal`.
+3.  Check the setting for *Integrated: Default Location*. It should be set to `view`.
+
 # What do you do if the registered tutorials no longer work after updating to 0.4.0
 
 Check the version of the Didact extension by looking at the `Extensions` Activity and checking the `Installed` extensions. Look for `Didact` and verify that version 0.4.0 is installed.