fix: remove deprecated mapCoverage (#20)

Tobino · eddyerburgh · commit 36ddb9930267 · 2018-05-22T17:41:09.000+01:00
diff --git a/README.md b/README.md
@@ -40,8 +40,7 @@ The following configurations are recommended for Jest:
     // serializer for snapshots
     "snapshotSerializers": [
       "<rootDir>/node_modules/jest-serializer-vue"
-    ],
-    "mapCoverage": true
+    ]
   }
 }
 ```

Original file line number	Diff line number	Diff line change
`@@ -40,8 +40,7 @@ The following configurations are recommended for Jest:`
`40`	`40`	`// serializer for snapshots`
`41`	`41`	`"snapshotSerializers": [`
`42`	`42`	`"<rootDir>/node_modules/jest-serializer-vue"`
`43`		`- ],`
`44`		`- "mapCoverage": true`
	`43`	`+ ]`
`45`	`44`	`}`
`46`	`45`	`}`
`47`	`46`	```