Implicit figures (#35)

* fix typography test

* add plugin before linkify

plugin markdown-it-implicit-figures is added before linkify,
so to assure that attrs plugin is added before implicit-figures
.use() attrs first, then implicit-figures:

md.use(attrs).use(implicitFigures)

ref: arve0/markdown-it-implicit-figures#18

* output in runkit.com is last line, fix demo

demo.js

@@ -7,6 +7,4 @@ md.use(markdownItAttrs);
 var src = '# header {.style-me}\n';
 src += 'paragraph {data-toggle=modal}';
 
-var res = md.render(src);
-
-console.log(res);  // eslint-disable-line
+md.render(src);

index.js

@@ -139,7 +139,7 @@ module.exports = function attributes(md) {
 
     }
   }
-  md.core.ruler.before('replacements', 'curly_attributes', curlyAttrs);
+  md.core.ruler.before('linkify', 'curly_attributes', curlyAttrs);
 };
 
 /**

test.js

@@ -164,7 +164,8 @@ describe('markdown-it-attrs', () => {
   it('should work with typography enabled', () => {
     src = 'text {key="val with spaces"}';
     expected = '<p key="val with spaces">text</p>\n';
-    assert.equal(md.render(src), expected);
+    var res = md.set({ typographer: true }).render(src);
+    assert.equal(res, expected);
   });
 
   it('should support code blocks', () => {