Remove backslashes from plot-schema.json and add docs/build/ to .gitignore

Author: daexs

.gitignore

@@ -21,4 +21,5 @@ tags
 !.gitignore
 !.npmignore
 
-docs/tmp/
+docs/tmp/
+docs/build/

dist/plot-schema.json

@@ -47961,7 +47961,7 @@
      "valType": "number"
     },
     "source": {
-     "description": "Specifies the data URI of the image to be visualized. The URI consists of \"data:image/[<media subtype\\\\>][;base64\\\\],<data\\\\>\"",
+     "description": "Specifies the data URI of the image to be visualized. The URI consists of \"data:image/[<media subtype>][;base64],<data>\"",
      "editType": "calc",
      "valType": "string"
     },

src/traces/image/attributes.js

@@ -21,7 +21,7 @@ module.exports = extendFlat({
         editType: 'calc',
         description: [
             'Specifies the data URI of the image to be visualized.',
-            'The URI consists of "data:image/[<media subtype\\\\>][;base64\\\\],<data\\\\>"'
+            'The URI consists of "data:image/[<media subtype>][;base64],<data>"'
         ].join(' ')
     },
     z: {