troubleshooting: new entry for manimpango, hint for update for old pango problems

Author: behackl

docs/source/installation/troubleshooting.rst

@@ -3,30 +3,28 @@ Troubleshooting
 
 List of known installation problems.
 
-(Windows) OSError: dlopen() failed to load a library: pango?
-------------------------------------------------------------
-
-If your manual installation of Manim (or even the installation using
-Chocolatey) fails with the error
+``pip install manim`` fails when installing manimpango?
+-------------------------------------------------------
+Most likely this means that pip was not able to use our pre-built wheels
+of ``manimpango``. Let us know (via our `Discord <https://discord.gg/mMRrZQW>`_
+or by opening a
+`new issue on GitHub <https://github.com/ManimCommunity/ManimPango/issues/new>`_)
+which architecture you would like to see supported, and we'll see what we
+can do about it.
+
+To fix errors when installing ``manimpango``, you need to make sure you
+have all the necessary build requirements. Check out the detailed
+instructions given in
+`the BUILDING section <https://github.com/ManimCommunity/ManimPango#BUILDING>`_
+of the corresponding `GitHub repository <https://github.com/ManimCommunity/ManimPango>`_.
 
-.. code-block::
 
-  OSError: dlopen() failed to load a library: pango / pango-1 / pango-1.0 / pango-1.0-0
-
-possibly combined with alerts warning about procedure entry points
-``"deflateSetHeader"`` and ``"inflateReset2"`` that could not be
-located, you might run into an issue with a patched version of ``zlib1.dll``
-shipped by Intel, `as described here <https://github.com/msys2/MINGW-packages/issues/813>`_.
+(Windows) OSError: dlopen() failed to load a library: pango?
+------------------------------------------------------------
 
-To resolve this issue, you can copy ``zlib1.dll`` from the directory
-provided for the Pango binaries to the directory Manim is installed to.
+This should be fixed in Manim's latest version, update
+using ``pip install --upgrade manim``.
 
-For a more global solution (try at your own risk!), try renaming the
-file ``zlib1.dll`` located at ``C:\Program Files\Intel\Wifi\bin`` to
-something like ``zlib1.dll.bak`` -- and then try installing Manim again
-(either using ``pip install manim`` or with Chocolatey). Ensure that
-you are able to revert this name change in case you run into troubles
-with your WiFi (we did not get any reports about such a problem, however).
 
 
 Some letters are missing from TextMobject/TexMobject output?