Add custom attribute to tut req

doorstop/cli/tests/test_all.py

@@ -22,8 +22,8 @@
 from doorstop.core.builder import _clear_tree
 from doorstop.core.document import Document
 
-REQ_COUNT = 17
-ALL_COUNT = 49
+REQ_COUNT = 18
+ALL_COUNT = 50
 
 
 class TempTestCase(unittest.TestCase):

reqs/tutorial/.doorstop.yml

@@ -3,3 +3,6 @@ settings:
   parent: REQ
   prefix: TUT
   sep: ''
+attributes:
+  publish:
+    - CUSTOM-ATTRIB

reqs/tutorial/TUT020.yml

@@ -0,0 +1,23 @@
+CUSTOM-ATTRIB: true
+active: true
+derived: false
+header: ''
+level: 2.3
+links:
+- REQ007: N4qTPlDi0z6kClsYAWlTsYPYWPylyr5KscMlxyYlzbA=
+normative: true
+ref: ''
+reviewed: eXhaivJwaU26FVviGRdvG0i0a_YV5y6BKSxf4t55umY=
+text: |
+  **Include custom attributes in published output**
+
+  Include the custom attribute that should be published in `.doorstop.yml`,
+  e.g.
+
+      settings:
+        digits: 3
+        prefix: TUT
+        sep: ''
+      attributes:
+        publish:
+          - CUSTOM-ATTRIB