doc: format with markdownlint

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I53c76c240a893ede5314839e70fe82b93325d59a
diff --git a/.markdownlint.yaml b/.markdownlint.yaml
new file mode 100644
index 0000000..b6f0e5a
--- /dev/null
+++ b/.markdownlint.yaml
@@ -0,0 +1 @@
+default: true