docs(README): fix malformed emoji (#701)

Mikhail Vasin · michael-ciniawsky · commit 1c51265677e3 · 2018-05-05T22:13:52.000+02:00
diff --git a/README.md b/README.md
@@ -219,7 +219,7 @@ The loader replaces local selectors with unique identifiers. The choosen unique
 ._23_aKvs-b8bW2Vg3fwHozO ._13LGdX8RMStbBE9w-t0gZ1 .global-class-name { color: blue; }
 ```
 
-> :information_source: Identifiers are exported
+> ℹ️ Identifiers are exported
 
 ```js
 exports.locals = {
