Document plugin options

Author: rattrayalex

README.md

@@ -11,9 +11,46 @@ If you are using ES7 features (like `import`), JSX, and Flow, use
 [babel-preset-lightscript](https://github.com/lightscript/babel-preset-lightscript)
 to target ES6 instead of using the plugin directly.
 
+If you are using `babel-plugin-lightscript` with other plugins, be sure it is the *first* plugin.
+
+### Options
+
+You may disable the standard library:
+
+    {
+      "plugins": [
+        ["lightscript", { "stdlib": false }]
+      ]
+    }
+
+Or disable its inclusion of lodash:
+
+    {
+      "plugins": [
+        ["lightscript", {
+          "stdlib": {
+            "lodash": false,
+          }
+        }]
+      ]
+    }
+
+Or tell it to use `require()` instead of `import`:
+
+    {
+      "plugins": [
+        ["lightscript", {
+          "stdlib": {
+            "require": true,
+          }
+        }]
+      ]
+    }
+
+
 ### Contributing
 
-You will need to link babel-plugin-lightscript to itself:
+You will need to link `babel-plugin-lightscript` to itself:
 
     cd babel-plugin-lightscript
     npm link
@@ -22,4 +59,4 @@ You will need to link babel-plugin-lightscript to itself:
     npm run build
     npm test
 
-Please report issues on [the main lightscript repo](https://github.com/lightscript/lightscript) instead of here. 
+Please report issues on [the main lightscript repo](https://github.com/lightscript/lightscript) instead of here.