docs: fix links

Author: sagold

README.md

@@ -168,14 +168,14 @@ Please note that these benchmarks refer to validation only. _json-schema-library
 
 ## SchemaNode methods
 
-[**addRemoteSchema**](#addremote) ·
+[**addRemoteSchema**](#addremoteschema) ·
 [**compileSchema**](#compileSchema-1) ·
 [**createSchema**](#createSchema) ·
 [**getChildSelection**](#getchildselection) ·
 [**getData**](#getdata) ·
 [**getNode**](#getnode) ·
-[**getNodeChild**](#getchild) ·
-[**getNodeRef**](#getref) ·
+[**getNodeChild**](#getnodechild) ·
+[**getNodeRef**](#getnoderef) ·
 [**getNodeRoot**](#getnoderoot) ·
 [**reduceNode**](#reducenode) ·
 [**toDataNodes**](#todatanodes) ·