bpo-44740: Lowercase "internet" and "web" where appropriate. (GH-27378) (GH-27380)

Co-authored-by: Ɓukasz Langa <lukasz@langa.pl>
(cherry picked from commit 11749e2dc20ad6a76e9a39e948853e89b2b4bbed)

Co-authored-by: Mariusz Felisiak <felisiak.mariusz@gmail.com>
diff --git a/Tools/demo/rpythond.py b/Tools/demo/rpythond.py
index a18de13..4e47fb9 100755
--- a/Tools/demo/rpythond.py
+++ b/Tools/demo/rpythond.py
@@ -5,7 +5,7 @@
 Execute Python commands remotely and send output back.
 
 WARNING: This version has a gaping security hole -- it accepts requests
-from any host on the Internet!
+from any host on the internet!
 """
 
 import sys
diff --git a/Tools/pynche/README b/Tools/pynche/README
index e026159..ae8183f 100644
--- a/Tools/pynche/README
+++ b/Tools/pynche/README
@@ -27,7 +27,7 @@
     Pynche must find a text database of colors names in order to
     provide `nearest' color matching.  Pynche is distributed with an
     rgb.txt file from the X11R6.4 distribution for this reason, along
-    with other "Web related" database (see below).  You can use a
+    with other "web related" database (see below).  You can use a
     different file with the -d option.  The file xlicense.txt contains
     the license only for rgb.txt and both files are in the X/
     subdirectory.
@@ -356,7 +356,7 @@
 
     html40colors.txt -- the HTML 4.0 guaranteed color names
 
-    websafe.txt -- the 216 "Web-safe" colors that Netscape and MSIE
+    websafe.txt -- the 216 "web-safe" colors that Netscape and MSIE
     guarantee will not be dithered.  These are specified in #rrggbb
     format for both values and names