[PATCH] README.md: Update oneliner build command

[Alex Hung]

This fixes the following warning:

WARNING: Running the setup command as `meson [options]` instead of
`meson setup [options]` is ambiguous and deprecated.

Signed-off-by: Alex Hung <alex.hung at amd.com>
---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 9cef60d88..ed6647726 100644
--- a/README.md
+++ b/README.md
@@ -37,7 +37,7 @@ Building
 
 Oneliner to get started:
 
-    $ meson build && ninja -C build
+    $ meson setup build && ninja -C build
 
 Note that meson insist on separate build directories from the source tree.
 
-- 
2.43.0