fix typo in reading.md

docs/src/reading.md

@@ -507,7 +507,7 @@ Let's walk through some notable features of the example above:
   * The `rate` field has a `null` JSON value, so the default `@choosetype` recognizes it should be "lifted" to `Missing`, which then uses a predefined `lift` definition for `Missing`.
   * The `type` field is a `Symbol`, and has a fieldtag `json=(name="franken_type",)` which means the JSON key `franken_type` will be used to set the field value instead of the default `type` field name. A default `lift` definition for `Symbol` is used to convert the JSON string value to a `Symbol`.
   * The `notsure` field is of type `Any`, so the default object type `JSON.Object{String, Any}` is used to materialize the JSON value.
-  * The `monster` field is a polymorphic type, and the JSON value has a `monster_type` key that determines which concrete type to use. The `@choosetype` macro is used to define the logic for choosing the concrete type based on the JSON input. Note that teh `x` in `@choosetype` is a `LazyValue`, so we materialize via `x.monster_type[]` in order to compare with the string `"vampire"`.
+  * The `monster` field is a polymorphic type, and the JSON value has a `monster_type` key that determines which concrete type to use. The `@choosetype` macro is used to define the logic for choosing the concrete type based on the JSON input. Note that the `x` in `@choosetype` is a `LazyValue`, so we materialize via `x.monster_type[]` in order to compare with the string `"vampire"`.
   * The `percent` field is a custom type `Percent` and the `JSON.lift` macro defines how to construct a `Percent` from the JSON value, which is a `Float64` in this case.
   * The `birthdate` field uses a custom date format for parsing, specified in the JSON input.
   * The `percentages` field is a dictionary with keys of type `Percent`, which is a custom type. The `liftkey` function is defined to convert the JSON string keys to `Percent` types (parses the Float64 manually)