Update python version note for Linux. (#1562)

README.md

diff --git a/README.md b/README.md
index ef6615e..1eb3182 100644
--- a/README.md
+++ b/README.md
@@ -65,7 +65,7 @@
 
 ### Linux
 
-- `python`: Version 3.9.2 or above. Version 3.13.3 or a newer 3.13.x is recommended.
+- `python`: Version 3.8 or above.
 - `java`: For running closure compiler (optional)
 
 The emsdk pre-compiled binaries are built against Ubuntu/Focal 20.04 LTS and