Change "offsite" to "external" to correct broken URLs to lammps.org

doc/src/Intro_website.rst

@@ -26,7 +26,7 @@ available online are listed below.
 * `Tutorials <https://www.lammps.org/tutorials.html>`_
 
 * `Pre- and post-processing tools for LAMMPS <https://www.lammps.org/prepost.html>`_
-* `Other software usable with LAMMPS <https://www.lammps.org/offsite.html>`_
+* `Other software usable with LAMMPS <https://www.lammps.org/external.html>`_
 * `Viz tools usable with LAMMPS <https://www.lammps.org/viz.html>`_
 
 * `Benchmark performance <https://www.lammps.org/bench.html>`_

doc/src/Modify_contribute.rst

@@ -115,8 +115,8 @@ External contributions
 
 If you prefer to do so, you can also develop and support your add-on
 feature **without** having it included in the LAMMPS distribution, for
-example as a download from a website of your own.  See the `Offsite
-LAMMPS packages and tools <https://www.lammps.org/offsite.html>`_ page
+example as a download from a website of your own.  See the `External
+LAMMPS packages and tools <https://www.lammps.org/external.html>`_ page
 of the LAMMPS website for examples of groups that do this.  We are happy
 to advertise your package and website from that page.  Simply email the
 `developers <https://www.lammps.org/authors.html>`_ with info about your

doc/src/Tools.rst

@@ -7,7 +7,7 @@ steps are often necessary to setup and analyze a simulation.  A list
 of such tools can be found on the `LAMMPS webpage <lws_>`_ at these links:
 
 * `Pre/Post processing <https://www.lammps.org/prepost.html>`_
-* `Offsite LAMMPS packages & tools <https://www.lammps.org/offsite.html>`_
+* `External LAMMPS packages & tools <https://www.lammps.org/external.html>`_
 * `Pizza.py toolkit <pizza_>`_
 
 The last link for `Pizza.py <pizza_>`_ is a Python-based tool developed at