Update readme according to Kotlin integration changes
@@ -198,8 +198,8 @@ Then use `kapt` configuration instead of `annotationProcessor`.
```kotlin
@StorIOSQLiteType(table = "tweets")
data class Tweet @StorIOSQLiteCreator constructor(
- StorIOSQLiteColumn(name = "author") var author: String,
- StorIOSQLiteColumn(name = "content") var content: String)
+ StorIOSQLiteColumn(name = "author") val author: String,
+ StorIOSQLiteColumn(name = "content") val content: String)
```
[`AutoValue`](https://github.com/google/auto/blob/master/value/userguide/index.md):
