doc: fix TOC links in MANUAL_STEPS.md

Author: richardlau

ansible/MANUAL_STEPS.md

@@ -1,20 +1,20 @@
 # Manual steps required to setup machines
 
 * [Firewall Config](#adding-firewall-entries-for-jenkins-workers)
-* [Release machines](#release-*-machines)
+* [Release machines](#release--machines)
 * [RHEL7-s390x](#RHEL7-s390x)
   * [V8 Build Tools](#V8-build-tools)
   * [Devtoolset-6](#devtoolset-6-install)
 * [macOS](#macos)
-* [AIX 72](#aix72-install)
-  * [ccache on AIX 72](#ccache-3.7.4-on-AIX-7.2)
+* [AIX 72](#aix-72-install)
+  * [ccache on AIX 72](#ccache-374-on-aix-72)
   * [AHA filesystem](#Enable-the-AHA-fs)
   * [XL Compilers](#Install-XL-compilers)
-  * [Missing shared objects](#Fix-"Missing"-shared-objects)
+  * [Missing shared objects](#fix-missing-shared-objects)
   * [Preparing GCC](#Preparing-gcc-distributables)
   * [Preparing ccache](#Preparing-ccache-distributables)
-* [Windows](#Windows-(Azure/Rackspace))
-  * [Control Machine](#Control-machine-(where-Ansible-is-run))
+* [Windows](#windows-azurerackspace)
+  * [Control Machine](#control-machine-where-ansible-is-run)
   * [Target machines](#Target-machines)
 * [Jenkins Workspace](#jenkins-workspace)
 * [Docker hosts](#Docker-hosts)