update install doc (ubuntu 20.04 now fine and how to call spam in WSL from...

update install doc (ubuntu 20.04 now fine and how to call spam in WSL from VScode -- thanks Marielle)

docs/source/installation.rst

@@ -75,7 +75,7 @@ System dependencies for Debian/Ubuntu Linux
             $ sudo apt install git python3-dev python3-virtualenv python3-tk gcc g++ libeigen3-dev r-base libicu-dev libgmp-dev libmpfr-dev mpi-default-bin mpi-default-dev libcgal-dev gmsh libfreetype6-dev libxml2-dev libxslt-dev
 
 
-    Please see note for version 20.04 of Ubuntu [*]_.   Now you're ready to go to: :ref:`installVenv`
+    Now you're ready to go to: :ref:`installVenv`
 
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@@ -216,20 +216,25 @@ System dependencies for Windows 10
 
     If you're on Windows 10, please install `Ubuntu 18.04 WSL`_ (Windows Subsystem for Linux), and follow :ref:`debianDepends`.
 
-    In order for graphs and images to appear with `matplotlib` you need to first install `XMing`_ and have it running.
+    In order for graphs and images to appear with `matplotlib` you need to first install `VcXsrv`_ and have it running (otherwise `XMing`_ can also work).
     In your Ubuntu subsystem you must then run the following in the terminal:
 
-.. _Ubuntu 18.04 WSL: https://www.microsoft.com/en-us/p/ubuntu-1804-lts/9n9tngvndl3q
-.. _XMing: https://sourceforge.net/projects/xming/
-
     .. code-block:: bash
 
         echo "export DISPLAY=:0;" >> ~/.bashrc
 
-    Now you're ready to go to: :ref:`installVenv`
+    Now you're ready to go to: :ref:`installVenv`.
 
+    Note: If you'd like to run VSCode in Windows 10 and run spam in WSL it is possible, please follow `these`_ `three`_ `links`_.
 
 
+.. _Ubuntu 18.04 WSL: https://www.microsoft.com/en-us/p/ubuntu-1804-lts/9n9tngvndl3q
+.. _XMing: https://sourceforge.net/projects/xming/
+.. _VcXsrv: https://sourceforge.net/projects/vcxsrv/
+.. _these: https://code.visualstudio.com/docs/remote/wsl-tutorial
+.. _three: https://code.visualstudio.com/docs/python/python-tutorial
+.. _links: https://code.visualstudio.com/docs/python/environments
+
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@@ -490,8 +495,3 @@ Longer and cleaner solution :
         ...
         adding 'tifffile/_tifffile.so'
         ...
-
-
-.. [*] There is a temporary problem in generating builds consistent with PyPi with this version.
-       The easiest fix is to uncomment the ==N.M.O.P values from requirements.txt for the following: numpy, tifffile, SimpleITK, mpi4py, pybind11, opencv-python, lxml
-