DOC: added installation instructions for nightly build

Author: lpizzinidev

doc/source/getting_started/install.rst

@@ -201,6 +201,22 @@ Installing from source
 
 See the :ref:`contributing guide <contributing>` for complete instructions on building from the git source tree. Further, see :ref:`creating a development environment <contributing_environment>` if you wish to create a pandas development environment.
 
+Installing the development version of pandas
+~~~~~~~~~~~~~~~~~~~~~~
+
+Installing a nightly build is the quickest way to:
+
+* Try a new feature that will be shipped in the next release (that is, a feature from a pull-request that was recently merged to the main branch).
+* Check whether a bug you encountered has been fixed since the last release.
+
+You can install the nightly build of pandas using the scipy-wheels-nightly index from the PyPI registry of anaconda.org with the following command::
+
+    pip install --pre --extra-index https://pypi.anaconda.org/scipy-wheels-nightly/simple pandas
+
+Note that first uninstalling pandas might be required to be able to install nightly builds::
+
+    pip uninstall pandas -y
+
 Running the test suite
 ----------------------