Rail diagram documentation contains checkstyle problems

Description	Resource	Path	Location	Type
Multiple consecutive empty lines found.	examples.asciidoc	/org.eclipse.escet.releng.dev.documentation/asciidoc/rail	line 74	Checkstyle Problem

Description	Resource	Path	Location	Type
Trailing whitespace found.	examples.asciidoc	/org.eclipse.escet.releng.dev.documentation/asciidoc/rail	line 155	Checkstyle Problem