Add manual test plan

test-plan.md

@@ -0,0 +1,17 @@
+# Intro
+The specs are great for checking that the code functions as expected, but they can't verify that everything looks as it is supposed to.
+This test plan outlines what needs to be verified manually before the release.
+
+# Plan
+### Dictionary
+Open the main dialog, go to "Import", insert the text below, select "Delete everything and import", click "Import".
+
+filibuster;an irregular military adventurer.
+comment;a verbal or written remark expressing an opinion or reaction.
+
+### Websites
+https://www.merriam-webster.com/dictionary/filibuster
+* Verify that popups use the default style and fonts, and that they are on top.
+
+https://reddit.com
+* Verify that popups are on top.