Merge pull request #506 from cambridgemike/cambridgemike/update-shape-documentation

Copy over information about x-axis data type to shape attributes

Author: etpinard

src/components/shapes/attributes.js

@@ -53,7 +53,11 @@ module.exports = {
             'refers to an x coordinate',
             'If set to *paper*, the `x` position refers to the distance from',
             'the left side of the plotting area in normalized coordinates',
-            'where *0* (*1*) corresponds to the left (right) side.'
+            'where *0* (*1*) corresponds to the left (right) side.',
+            'If the axis `type` is *log*, then you must take the',
+            'log of your desired range.',
+            'If the axis `type` is *date*, then you must convert',
+            'the date to unix time in milliseconds.'
         ].join(' ')
     }),
     x0: {