add conda-forge.yml section

Author: bollwyvl

src/maintainer/conda_forge_yml.rst

@@ -37,6 +37,7 @@ Top-level fields
 * :ref:`linux`
 * :ref:`linux_aarch64`
 * :ref:`linux_ppc64le`
+* :ref:`noarch_platforms`
 * :ref:`os_version`
 * :ref:`osx`
 * :ref:`provider`
@@ -152,7 +153,6 @@ Leaving this field empty implicitly requests to build a package natively. i.e.
       osx_arm64: osx_arm64
       win_64: win_64
 
-
 .. _build_with_mambabuild:
 
 build_with_mambabuild
@@ -270,7 +270,7 @@ defaults are as follows:
       repo_name: ""
       # branch name to execute on
       branch_name: master
-      # branch name to use for rerender+webservices github actions and 
+      # branch name to use for rerender+webservices github actions and
       # conda-forge-ci-setup-feedstock references
       tooling_branch_name: master
 
@@ -321,6 +321,26 @@ Currently only:
     linux_ppc64le:
       enabled: False
 
+.. _noarch_platforms:
+
+noarch_platforms
+----------------
+Platforms on which to build noarch packages. The preferred default is a
+single build on ``linux_64``.
+
+.. code-block:: yaml
+
+    noarch_platforms: linux_64
+
+To build on multiple platforms, e.g. for simple packages with platform-specific
+dependencies, provide a list.
+
+.. code-block:: yaml
+
+    noarch_platforms:
+      - linux_64
+      - win_64
+
 .. _os_version:
 
 os_version