Move /e2e -> /e2e-tests

e2e-tests/cypress/tests/fixtures/markdown/markdown_lines.html

@@ -0,0 +1,8 @@
+<h3 class="markdown__heading">Lines</h3><p>Three lines should render with text between them:</p>
+<p>Text above line</p>
+<hr>
+<p>Text between lines</p>
+<hr>
+<p>Text between lines</p>
+<hr>
+<p>Text below line</p>