Update conf.py

Had to revert to the master_doc instead of main_doc, as the readthedocs compilation fails.

docs/conf.py

@@ -47,7 +47,7 @@
 source_suffix = '.rst'
 
 # The main toctree document.
-main_doc = 'index'
+master_doc = 'index'
 
 # General information about the project.
 project = 'EpiRegioDB'
@@ -148,7 +148,7 @@
 # (source start file, target name, title,
 #  author, documentclass [howto, manual, or own class]).
 latex_documents = [
-    (main_doc, 'EpiRegioDB.tex', 'EpiRegioDB Supplemental Material',
+    (master_doc, 'EpiRegioDB.tex', 'EpiRegioDB Supplemental Material',
      'Nina Baumgarten, Dennis Hecker, Sivarajan Karunanithi, and Marcel Schulz','manual'),
 ]
 
@@ -161,7 +161,7 @@
 # One entry per manual page. List of tuples
 # (source start file, name, description, authors, manual section).
 man_pages = [
-    (main_doc, 'EpiRegioDB', 'EpiRegioDB Documentation',
+    (master_doc, 'EpiRegioDB', 'EpiRegioDB Documentation',
      [author], 1)
 ]
 
@@ -172,7 +172,7 @@
 # (source start file, target name, title, author,
 #  dir menu entry, description, category)
 texinfo_documents = [
-    (main_doc, 'EpiRegioDB', 'EpiRegioDB Supplemental Material',
+    (master_doc, 'EpiRegioDB', 'EpiRegioDB Supplemental Material',
      author, 'EpiRegioDB', 'Analysis and retrieval of regulatory elements linked to genes with EpiRegio',
      'Miscellaneous'),
 ]