Update README.md

README.md

@@ -2,10 +2,15 @@
 
 This is a quick write-up of a possible way to render tikz graphics in Obsidian.
 
-:warning: This is an experimental plugin! Things may change and break at any time!
+:warning: This is an experimental plugin! Things may change and break at any time! I am not an experienced TypeScript, HTML or CSS programmer! So, no guarantees that anything will work!
 
 ![tikz_obsidian_logo](https://user-images.githubusercontent.com/25043715/158750976-109bea4e-ce28-4922-a066-2e184c4c950c.gif)
 
+## Usage
+
+Any code block that has the word combination `tikz render` in the language line will be rendered in preview mode. 
+This is because the language for syntax highlighting is determined by the first word, so that `latex tikz render` performs latex syntax highlighting.
+You can then specify either `side-by-side`, which will render code and image side-by-side (as shown in the demo gif), or `image-only`, which will render only the image.
 
 ## Installation
 
@@ -33,7 +38,7 @@ Go to the settings of the tikz render plugin and check if the render command is
 
 - Render source code blocks marked with `tikz render` in preview mode
 
-## TODO / Nice to have in the future
+### TODO / Nice to have in the future
 
 - Support tikz libraries and global custom styles
 - Side-by-side rendering in live-preview to see the image while typing (integration with CodeMirror?)
@@ -42,3 +47,7 @@ Go to the settings of the tikz render plugin and check if the render command is
 - Better error / log messages when build fails
 - Test on Windows and Mac
 - `tikz style` (or similar) code blocks to define file-local styles
+
+## Contributing
+
+If you want to contribute, feel free to open issues or pull requrests.