Create some Markdown files for testing

tests/GFM.md

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+# Strikethrough
+
+Below text should be parsed as _strikethroughed_.
+
+~~ Mistaken text. ~~
+
+# Fenced Code Blocks
+
+## In / Near List Items
+
+Below fenced code blocks _should_ be highlighted.
+
+---
+
+* List item
+
+    ```js
+    for (var i = 0; i < 10; i++) {
+        console.log(i);
+    }
+    ```
+
+* List item
+
+```js
+for (var i = 0; i < 10; i++) {
+    console.log(i);
+}
+```
+
+---
+
+Below are _not_ valid fenced code blocks according to the [GFM docs][GFM]. It says there must be a blank line before the code block. However, GitHub highlights them. So, they _should_ be highlighted.
+
+---
+
+* List item
+    ```js
+    for (var i = 0; i < 10; i++) {
+        console.log(i);
+    }
+    ```
+
+* List item
+```js
+for (var i = 0; i < 10; i++) {
+    console.log(i);
+}
+```
+
+## In / Near Paragraphs
+
+Below is _not_ a _fenced_ code block, just a normal code block.
+
+---
+
+Paragraph
+
+    ```js
+    for (var i = 0; i < 10; i++) {
+        console.log(i);
+    }
+    ```
+
+---
+
+Below 2 blocks are fenced code blocks. They _should_ be highlighted.
+
+---
+
+Paragraph
+
+```js
+for (var i = 0; i < 10; i++) {
+    console.log(i);
+}
+```
+
+Paragraph
+```js
+for (var i = 0; i < 10; i++) {
+    console.log(i);
+}
+```
+
+---
+
+Below is not any type of code block. It _should not_ be highlighted.
+
+---
+
+Paragraph
+    ```js
+    for (var i = 0; i < 10; i++) {
+        console.log(i);
+    }
+    ```
+
+[GFM]: https://help.github.com/articles/github-flavored-markdown

tests/README.md

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+These are some example files to test if the syntax highlighting works correctly. They include some edge cases, too.