fixing RTD build

.gitignore

@@ -13,3 +13,7 @@ repo2docker/s2i
 lib/
 share/
 include/
+
+# Docs
+generated/
+test_file_text.txt

docs/source/conf.py

@@ -215,5 +215,5 @@ for folder, _, files in os.walk(os.path.join('..', '..', 'tests')):
 for key in FILE_ORDER_PREFERENCE:
     for istring in FILES_DICT[key]:
         s += istring
-with open('./generated/test_file_text.txt', 'w') as ff:
+with open('./test_file_text.txt', 'w') as ff:
     ff.write(s)

docs/source/samples.rst

@@ -4,4 +4,4 @@ Sample build files
 There are many options for specifying your environment with ``repo2docker``.
 The following sections describe a few samples to get you started.
 
-.. include:: generated/test_file_text.txt
+.. include:: test_file_text.txt