Merge pull request #35 from andorsk/andorsk-updated-readme

updated README to customize output types

README.md

@@ -80,6 +80,18 @@ Note: All compile commands will open the output in a buffer to view the resultin
 
 You can specify the location of `d2` with the variable `d2-location`, the default assumes you have the binary in your `PATH` (and for that you probably want/need to install [`d2`](https://github.com/andorsk/d2-mode)).
 
+### `d2` output format
+
+You can specify png or svg output format by putting this in your `init.el` file:
+
+```(setq d2-output-format "<OUTPUT_FORMAT")```
+
+Optins are: 
+- `.png`
+- `.svg`
+
+Default is SVG.
+
 ### Output format
 
 By default `d2` will compile to svg format. You can change that by setting the variable `d2-output-format`.