Merge pull request #25 from marekhrabe/master

Added mkdir page for osx

osx/mkdir.md

@@ -0,0 +1,11 @@
+# mkdir
+
+> Creates a directory
+
+- creates a directory in current folder or given path
+
+`mkdir {{directory}}`
+
+- creates directories recursively (useful for creating nested dirs)
+
+`mkdir -p {{path}}`