update README.md with examples

README.md

@@ -1,2 +1,15 @@
-# .profile
+# matt
 
+example profile page
+
+markdown rendering
+
+mermaid diagrams
+```mermaid
+flowchart LR
+    a --> b
+    b --> c
+    a --> c
+```
+
+[link](./README.md)