State newly used installation command
`install_local` is used since
@@ -142,7 +142,7 @@ We use ``apt.txt``, for example, to install LaTeX in our
To install your repository like an R package, you may include a
``DESCRIPTION`` file. repo2docker installs the package and dependencies
-from the ``DESCRIPTION`` by running ``devtools::install_git(".")``.
+from the ``DESCRIPTION`` by running ``devtools::install_local(getwd())``.
You also need to have a ``runtime.txt`` file that is formatted as
``r-<YYYY>-<MM>-<DD>``, where YYYY-MM-DD is a snapshot of MRAN that will be
