Remove title heading and automatic see-also section (#46)

The book's chapters are divided into three parts: Welcome to Swift,
Language Guide, and Language Reference.  As a result, the automatically
generated See Also sections at the end of each chapter are fairly
distracting (and obviated somewhat by DocC's new sidebar). 

The title heading is unnecesary in the context of a book, because all
pages are the same kind of content (a chapter), unlike documentation for
a framework or module that includes various types of API reference and
articles.

Fixes #6

Fixes rdar://101885438

Author: amartini51

Sources/TSPL/TSPL.docc/TSPL.md

@@ -4,6 +4,11 @@
   @DisplayName("The Swift Programming Language")
 }
 
+@Options(scope: global) {
+  @AutomaticSeeAlso(disabled)
+  @AutomaticTitleHeading(disabled)
+}
+
 ## Topics
 
 ### Guided Tour