docs(README.md): fix links

Author: jedwards1211

README.md

@@ -40,16 +40,15 @@ The validation errors are detailed. Adapted from the brilliant work in `flow-run
     - [`t.oneOf(t.string(), t.number())`](#toneoftstring-tnumber)
     - [`t.alias(name, type)`](#taliasname-type)
     - [`t.ref(() => typeAlias)`](#tref--typealias)
-  - [`t.Type<T>`](#ttype)
+  - [`t.Type<T>`](#ttypet)
     - [`accepts(input: any): boolean`](#acceptsinput-any-boolean)
-    - [`assert<V extends T>(input: any, prefix = '', path?: (string | number | symbol)[]): V`](#assertinput-any-prefix---path-string--number--symbol-v)
-    - [`validate(input: any, prefix = '', path?: (string | number | symbol)[]): Validation<T>`](#validateinput-any-prefix---path-string--number--symbol-validation)
-    - [`warn(input: any, prefix = '', path?: (string | number | symbol)[]): void`](#warninput-any-prefix---path-string--number--symbol-void)
+    - [`assert<V extends T>(input: any, prefix = '', path?: (string | number | symbol)[]): V`](#assertv-extends-tinput-any-prefix---path-string--number--symbol-v)
+    - [`validate(input: any, prefix = '', path?: (string | number | symbol)[]): Validation<T>`](#validateinput-any-prefix---path-string--number--symbol-validationt)
     - [`toString(): string`](#tostring-string)
-  - [`t.ExtractType<T extends Type<any>>`](#textracttype)
-  - [`t.TypeAlias<T>`](#ttypealias)
+  - [`t.ExtractType<T extends Type<any>>`](#textracttypet-extends-typeany)
+  - [`t.TypeAlias<T>`](#ttypealiast)
     - [`readonly name: string`](#readonly-name-string)
-    - [`addConstraint(...constraints: TypeConstraint<T>[]): this`](#addconstraintconstraints-typeconstraint-this)
+    - [`addConstraint(...constraints: TypeConstraint<T>[]): this`](#addconstraintconstraints-typeconstraintt-this)
   - [Custom Constraints](#custom-constraints)
   - [Recursive Types](#recursive-types)