Add synthetic time series examples

Electricity demand and solar time series

Author: phumthep

docs/source/examples/synthetic_load.nblink

@@ -0,0 +1 @@
+{"path": "../../../examples/synthetic_load.ipynb"}

docs/source/index.rst

@@ -36,6 +36,7 @@ School of Civil and Environmental Engineering, Cornell University.
 **Examples**
 
 * :doc:`examples/custom_workflow`
+* :doc:`examples/synthetic_load`
 * :doc:`examples/synthetic_solar`
 * :doc:`examples/reservoir_simulation`
 
@@ -45,6 +46,7 @@ School of Civil and Environmental Engineering, Cornell University.
    :maxdepth: 1
 
    examples/custom_workflow
+   examples/synthetic_load
    examples/synthetic_solar
    examples/reservoir_simulation