[LyX/master] Fix grammar in, and try to clarify, warning

[Juergen Spitzmueller]

commit 689962b8d5d952a7569d7c4e8ec4366fac822c9c
Author: Juergen Spitzmueller <spitz at lyx.org>
Date:   Mon Jan 9 07:28:49 2023 +0100

    Fix grammar in, and try to clarify, warning
    
    I suppose many users won't know what a "python interpreter" is and how
    they could install one.
---
 src/LyX.cpp |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/src/LyX.cpp b/src/LyX.cpp
index 2a7cba3..06d1e32 100644
--- a/src/LyX.cpp
+++ b/src/LyX.cpp
@@ -616,7 +616,8 @@ void LyX::execCommands()
 		switch (Alert::prompt(
 			_("No python is found"),
 			_("LyX will only have minimal functionality because no python interpreter "
-				"has been found. Consider download and install of an python interpreter."),
+			  "has been found. Consider installing python with your software manager "
+			  "or from the python.org website."),
 			0, 1,
 			_("&Continue"),
 			_("&Exit LyX")))