docs: explicitly end win32 support

docs/installation.rst

@@ -375,8 +375,8 @@ Native Windows
 You must install the following for Windows:
 
 * Python 3.8 (64-bit) or later
-* Tesseract 4.1.1 or later
-* Ghostscript 9.50 or later
+* Tesseract 4.1.1 (64-bit) or later
+* Ghostscript 9.50 (64-bit) or later
 
 Using the `Chocolatey <https://chocolatey.org/>`_ package manager, install the
 following when running in an Administrator command prompt:
@@ -395,10 +395,8 @@ Administrator.):
 
 * ``pip install ocrmypdf``
 
-Chocolatey automatically selects appropriate versions of these applications. If you
-are installing them manually, please install 64-bit versions of all applications for
-64-bit Windows, or 32-bit versions of all applications for 32-bit Windows. Mixing
-the "bitness" of these programs will lead to errors.
+Chocolatey automatically selects appropriate versions of these applications. Please make sure
+you are installing the 64-bit versions.
 
 OCRmyPDF will check the Windows Registry and standard locations in your Program Files
 for third party software it needs (specifically, Tesseract and Ghostscript). To
@@ -413,6 +411,10 @@ to change the PATH.
     Please download Python from Python.org or Chocolatey instead, and do not use the
     Microsoft Store version.
 
+.. warning::
+
+    32-bit Windows might work, but is not supported.
+
 Windows Subsystem for Linux
 ---------------------------