Update api.md

docs/api.md

@@ -42,6 +42,9 @@ The messageData object will be converted to JSON and passed as a parsed object t
 
 ### api.getSessionId() (`String`)
 Returns the current session identifier
+### api.getArgs() (`Array` of `String`)
+Returns the process arguments
+
 ### api.getLogger() (lo4js logger)
 Returns the `log4js` logger.
 ### api.getWindow() (`BrowserWindow`)
@@ -53,6 +56,15 @@ Returns the absolute path to the session-specific temp folder
 ### api.getPluginsFolder() (`String`)
 Returns the absolute path to L'Math's plugin folder
 
+### api.getCurrentFile() (`String`)
+Returns the absolute path of the current file (or an empty string or null if none)
+### api.openDevTools()
+Opens developer tools in the main window
+
+### api.renderFormula(latex (`String`), callback (`function`))
+Uses the built-in MathQuill instance to render TeX to SVG.
+Does not trigger the `formulaRender` or `formulaRendered` events.
+
 ----
 
 ### events
@@ -85,6 +97,16 @@ Returns the absolute path to L'Math's plugin folder
     * Called when a page has been succesfully saved to its temporary file
     * Event data 
         * `pageId` - the id of the page
+* `formulaRender`
+    * Called before rendering a LaTeX formula
+    * Event data
+        * `number` - value of the formula counter
+        * `latex` - the TeX code, **can be modified**
+* `formulaRendered`
+    * Called before rendering a LaTeX formula
+    * Event data
+        * `number` - value of the formula counter
+        * `svg` - the SVG content, **can be modified**
 
 ## Frontend