Updated install documentation.

docs/install.rst

@@ -52,16 +52,16 @@ check this by running::
     $ pip --version
     pip 9.0.1
 
-If you installed Python from source, with an installer from `python.org`_, or
-via `Homebrew`_ you should already have pip. If you're on Linux and installed
+If you installed Python from source, with an installer from `python.org`_, via `Homebrew`_ or via `Linuxbrew`_ you should already have pip. If you're on Linux and installed
 using your OS package manager, you may have to `install pip <https://pip.pypa.io/en/stable/installing/>`_ separately.
 
-If you plan to install Pipenv using Homebrew you can skip this step. The
-Homebrew installer takes care of pip for you.
+If you plan to install Pipenv using Homebrew or Linuxbrew you can skip this step. The
+Homebrew/Linuxbrew installer takes care of pip for you.
 
 .. _getting started tutorial: https://opentechschool.github.io/python-beginners/en/getting_started.html#what-is-python-exactly
 .. _python.org: https://python.org
 .. _Homebrew: https://brew.sh
+.. _Linuxbrew: https://linuxbrew.sh/
 .. _Installing Python: http://docs.python-guide.org/en/latest/starting/installation/
 
 
@@ -97,6 +97,22 @@ To upgrade pipenv at any time::
 
     $ brew upgrade pipenv
 
+☤ Linuxbrew Installation of Pipenv
+---------------------------------
+
+Linuxbrew is a Linux port of the popular open-source package management system for macOS.
+
+Installing pipenv via Linuxbrew will keep pipenv and all of its dependencies in
+an isolated virtual environment so it doesn't interfere with the rest of your
+Python installation.
+
+Once you have installed `Linuxbrew`_ simply run::
+
+    $ brew install pipenv
+
+To upgrade pipenv at any time::
+
+    $ brew upgrade pipenv
 
 ☤ Pragmatic Installation of Pipenv
 ----------------------------------