Remove trailing whitespace

Author: JamesParrott

README.md

@@ -103,7 +103,7 @@ part of your geospatial project.
 
 ### Development:
 - Code quality tools (Ruff format) run on PyShp
-- Network, non-network, or all doctests selectable via command line args 
+- Network, non-network, or all doctests selectable via command line args
 - Network tests made runnable on localhost.
 
 ## 2.3.1
@@ -1436,7 +1436,7 @@ ESRI White Paper](http://downloads.esri.com/support/whitepapers/ao_/J9749_MultiP
 
 The testing framework is pytest, and the tests are located in test_shapefile.py.
 This includes an extensive set of unit tests of the various pyshp features,
-and tests against various input data. 
+and tests against various input data.
 In the same folder as README.md and shapefile.py, from the command line run
 
 ```shell
@@ -1459,7 +1459,7 @@ to correct line endings in README.md, if Git has not automatically changed them.
 
 Some of the tests and doctests, are intended to test reading shapefiles from
 remote servers, which requires internet connectivity.  The pytest tests are marked "network".
-For rapid iteration, in CI, or when developing in offline testing environments, these 
+For rapid iteration, in CI, or when developing in offline testing environments, these
 tests can be dealt with in two ways:
  i) by skipping the network tests via :
 ```shell
@@ -1485,10 +1485,10 @@ or the doctests via:
 ```bash
 REPLACE_REMOTE_URLS_WITH_LOCALHOST=yes && python shapefile.py
 ```
-The network tests alone can also be run (without also running all the tests that don't 
+The network tests alone can also be run (without also running all the tests that don't
 make network requests) using: `pytest -m network` (or the doctests using: `python shapefile.py -m network`).
 
-(*) The steps to host the files using Caddy for PYthon 2 are in ./actions/test/action.yml.  For reasons as 
+(*) The steps to host the files using Caddy for PYthon 2 are in ./actions/test/action.yml.  For reasons as
 yet unknown, shapefile.py's Reader class in Python 2 Pytest, can't connect to a Python 2 SimpleHTTPServer.