Update conf.py

@@ -195,10 +195,10 @@ latex_elements = {
 
 # Grouping the document tree into LaTeX files. List of tuples
 # (source start file, target name, title, author, documentclass [howto/manual]).
- latex_documents = [
+latex_documents = [
    ('index', 'casperjs.tex', 'CasperJs Documentation',
    'Nicolas Perriault', 'manual'),
- ]
+]
 
 # The name of an image file (relative to this directory) to place at the top of
 # the title page.