Enable Section Summary TOC for small pages

Issue gh-869

Author: rwinch

Diff for: modules/ROOT/pages/faq.adoc

@@ -1,5 +1,6 @@
 [[spring-ldap-faq]]
 = Spring LDAP FAQ
+:page-section-summary-toc: 1
 
 [[operational-attributes]]
 == Operational Attributes

Diff for: modules/ROOT/pages/index.adoc

@@ -1,5 +1,6 @@
 [[spring-ldap-reference]]
 = Spring LDAP Reference
+:page-section-summary-toc: 1
 Mattias Hellborg Arthursson; Ulrik Sandberg; Eric Dalquist; Keith Barlow; Rob Winch
 
 Spring LDAP makes it easier to build Spring-based applications that use the Lightweight Directory Access Protocol.

Diff for: modules/ROOT/pages/preface.adoc

@@ -1,5 +1,6 @@
 [[preface]]
 = Preface
+:page-section-summary-toc: 1
 
 The Java Naming and Directory Interface (JNDI) is to LDAP programming what Java Database Connectivity (JDBC) is to SQL programming. There are several similarities between JDBC and JNDI/LDAP (Java LDAP). Despite being two completely different APIs with different pros and cons, they share a number of less flattering characteristics:
 

Diff for: modules/ROOT/pages/utilities.adoc

@@ -1,5 +1,6 @@
 [[utilities]]
 = Utilities
+:page-section-summary-toc: 1
 
 This section describes additional utilities that you can use with Spring LDAP.