From 682c818a80b2b971e44165f260aa394d8a2f2d82 Mon Sep 17 00:00:00 2001
From: Eideen <1884894+Eideen@users.noreply.github.com>
Date: Sun, 3 Oct 2021 13:15:43 +0200
Subject: [PATCH] add  add  to the Doc

---
 README.md | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index 4424a1b..55abb2e 100644
--- a/README.md
+++ b/README.md
@@ -78,10 +78,11 @@ To get detailed information online, you can access the [/:help](http://wttr.in/:
 ### Weather Units
 
 By default the USCS units are used for the queries from the USA and the metric system for the rest of the world.
-You can override this behavior by adding `?u` or `?m` to a URL like this:
+You can override this behavior by adding `?u`, `?m` or `?M`   to a URL like this:
 
-    $ curl wttr.in/Amsterdam?u
-    $ curl wttr.in/Amsterdam?m
+    $ curl wttr.in/Amsterdam?u  # USCS (used by default in US)
+    $ curl wttr.in/Amsterdam?m  # metric (SI) (used by default everywhere except US)
+    $ curl wttr.in/Amsterdam?M  # metric (SI), but show wind speed in m/s
 
 ## Supported output formats and views