Import plot function in get-started guide

CONTRIBUTING.md

@@ -4,7 +4,7 @@ Thank you for considering contributing to this project! Here are some guidelines
 
 ## How can I contribute to this project?
 ### Reporting Bugs
-If you find a bug, please report it by opening an issue in the issue tracker. Provide as much detail as possible to help us understand and reproduce the issue:
+If you find a bug, please report it by opening an issue in the Github issue tracker. Provide as much detail as possible to help us understand and reproduce the issue:
 - A clear and descriptive title.
 - A detailed description of the problem.
 - Steps to reproduce the issue.
@@ -28,7 +28,7 @@ Pull requests are welcome! If you plan to make significant changes, please open
 - Open a pull request in the original repository.
 
 ## Development
-Here are the basic commands you can use to develop this package.
+Important commands and major dependencies are managed in Pipenv. Here are the basic commands you can use to develop this package.
 
 ### Install Pipenv
 If you don't have `pipenv` installed, you can install it using `pip`:

docs/source/get_started.rst

@@ -55,6 +55,8 @@ Then, let's build an empirical cumulative distribution function (CDF).
 .. code-block:: python
 
   import dte_adj
+  from dte_adj.plot import plot
+  
   estimator = dte_adj.SimpleDistributionEstimator()
   estimator.fit(X, D, Y)
   cdf = estimator.predict(D, Y)