docs: fix broken links (ajv-validator#2006)

Co-authored-by: Connor Smith <[email protected]>
Co-authored-by: Evgeny Poberezkin <[email protected]>

docs/api.md

@@ -149,7 +149,7 @@ Every time this method is called the errors are overwritten so you need to copy
 
 If the schema is asynchronous (has `$async` keyword on the top level) this method returns a Promise. See [Asynchronous validation](./guide/async-validation.md).
 
-<a name="add-schema"></a>
+<a id="add-schema"></a>
 
 ### ajv.addSchema(schema: object | object[], key?: string): Ajv
 

docs/guide/combining-schemas.md

@@ -41,7 +41,7 @@ const ajv = new Ajv()
 const validate = ajv.addSchema(defsSchema).compile(schema)
 ```
 
-See [Options](./api.md#options) and [addSchema](./api.md#add-schema) method.
+See [Options](../options.md) and [addSchema](../api.md#add-schema) method.
 
 ::: tip Reference resolution
 - `$ref` is resolved as the uri-reference using schema \$id as the base URI (see the example).