import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

taskcluster/docs/index.rst

@@ -0,0 +1,30 @@
+.. taskcluster_index:
+
+TaskCluster Task-Graph Generation
+=================================
+
+The ``taskcluster`` directory contains support for defining the graph of tasks
+that must be executed to build and test the Gecko tree.  This is more complex
+than you might suppose!  This implementation supports:
+
+ * A huge array of tasks
+ * Different behavior for different repositories
+ * "Try" pushes, with special means to select a subset of the graph for execution
+ * Optimization -- skipping tasks that have already been performed
+ * Extremely flexible generation of a variety of tasks using an approach of
+   incrementally transforming job descriptions into task definitions.
+
+This section of the documentation describes the process in some detail,
+referring to the source where necessary.  If you are reading this with a
+particular goal in mind and would rather avoid becoming a task-graph expert,
+check out the :doc:`how-to section <how-tos>`.
+
+.. toctree::
+
+    taskgraph
+    loading
+    transforms
+    yaml-templates
+    docker-images
+    how-tos
+    reference