Merge pull request #282 from dtolnay/indent

Fix json macro indentation

Author: steveklabnik

_posts/2018-10-25-Rust-1.30.0.md

@@ -103,8 +103,8 @@ let john = json!({
     "name": "John Doe",
     "age": 43,
     "phones": [
-    "+44 1234567",
-    "+44 2345678"
+        "+44 1234567",
+        "+44 2345678"
     ]
 });
 ```
@@ -120,8 +120,8 @@ let john = json!({
     "name": "John Doe",
     "age": 43,
     "phones": [
-    "+44 1234567",
-    "+44 2345678"
+        "+44 1234567",
+        "+44 2345678"
     ]
 });
 ```