[json-glib: 9/11] docs: Fix the build instructions

[Emmanuele Bassi <ebassi src gnome org>]

commit a6e5dd1e2312acc4efafc92ab792144b55005a97
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Mon Jul 10 11:04:42 2017 +0100

    docs: Fix the build instructions
    
    Meson is perfectly capable of creating the build directory, if the one
    specified on its command line does not exist.

 README.md |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/README.md b/README.md
index 930f2d4..8225cdf 100644
--- a/README.md
+++ b/README.md
@@ -45,7 +45,7 @@ INSTALLATION
 To build JSON-GLib just run:
 
 ```sh
-  $ mkdir _build && meson _build .
+  $ meson _build .
   $ ninja -C _build
   $ ninja -C _build test
   # ninja -C _build install