Chronos: How-to-Guides (How to train forecaster on single node) (#5224)

* how to train forecaster

* add a notebook

* add new notebook

* add index

* fix colab link

* change content

Co-authored-by: Xinyi Zhang <xinyi1.zhang@intel.com>
Co-authored-by: theaperdeng <theaperdeng@outlook.com>

docs/readthedocs/source/_toc.yml

@@ -55,6 +55,7 @@ subtrees:
       - file: doc/Chronos/Overview/windows_guide
       - file: doc/Chronos/Overview/quick-tour
       - file: doc/Chronos/Overview/deep_dive
+      - file: doc/Chronos/Howto/index
       - file: doc/Chronos/QuickStart/index
       - file: doc/Chronos/Overview/chronos_known_issue
 

docs/readthedocs/source/doc/Chronos/Howto/index.rst

@@ -0,0 +1,16 @@
+Chronos How-to Guides
+=========================
+How-to guides are bite-sized, executable examples where users could check when meeting with some specific topic during the usage.
+
+Forecasting
+-------------------------
+* `Train forcaster on single node <how_to_train_forecaster_on_one_node.html>`__
+
+    In this guidance, **we demonstrate how to train forecasters on one node**. In the training process, forecaster will learn the pattern (like the period, scale...) in history data. Although Chronos supports training on a cluster, it's highly recommeneded to try one node first before allocating a cluster to make life easier.
+
+
+.. toctree::
+    :maxdepth: 1
+    :hidden:
+
+    how_to_train_forecaster_on_one_node