Refactor README examples for easier reading

Author: kemitchell

README.md

@@ -2,34 +2,30 @@
 var parse = require('spdx-expression-parse')
 var assert = require('assert')
 
-var firstAST = {
-  left: {license: 'LGPL-2.1'},
-  conjunction: 'or',
-  right: {
-    left: {license: 'BSD-3-Clause'},
-    conjunction: 'and',
-    right: {license: 'MIT'}
-  }
-}
-
 assert.deepEqual(
   parse('(LGPL-2.1 OR BSD-3-Clause AND MIT)'),
-  firstAST
-)
-
-var secondAST = {
-  left: {license: 'MIT'},
-  conjunction: 'and',
-  right: {
-    left: {license: 'LGPL-2.1', plus: true},
-    conjunction: 'and',
-    right: {license: 'BSD-3-Clause'}
+  {
+    left: {license: 'LGPL-2.1'},
+    conjunction: 'or',
+    right: {
+      left: {license: 'BSD-3-Clause'},
+      conjunction: 'and',
+      right: {license: 'MIT'}
+    }
   }
-}
+)
 
 assert.deepEqual(
   parse('(MIT AND (LGPL-2.1+ AND BSD-3-Clause))'),
-  secondAST
+  {
+    left: {license: 'MIT'},
+    conjunction: 'and',
+    right: {
+      left: {license: 'LGPL-2.1', plus: true},
+      conjunction: 'and',
+      right: {license: 'BSD-3-Clause'}
+    }
+  }
 )
 
 // We handle all the bare SPDX license and exception ids as well.