README.md: Update documentation for using meson

The README was outdated and was pointing to using automake instead of
meson.

Change-Id: Id8dcf2cdb1a5546a56e77328342779e10cedea20
Signed-off-by: Brandon Kim <brandonkim@google.com>
diff --git a/README.md b/README.md
index 496b6b5..65129ad 100644
--- a/README.md
+++ b/README.md
@@ -13,23 +13,18 @@
 
 ## Dependencies
 
-Test cases require google{test,mock}, valgrind, and lcov.
+Test cases require google{test,mock}, valgrind, and lcov. It also requires the Meson Build System which can be installed following the instructions at [mesonbuild.com](https://mesonbuild.com/Getting-meson.html).
 
 ## Building
 For a standard release build, you want something like:
 ```
-./bootstrap.sh
-./configure --disable-examples --disable-tests
-make
-make install
+meson setup -Dexamples=false -Dtests=disabled builddir
+ninja -C builddir
+ninja -C builddir install
 ```
 
 For a test / debug build, a typical configuration is
 ```
-./bootstrap.sh
-./configure --enable-tests --enable-coverage --enable-valgrind
-make
-make check
-make check-valgrind
-make check-code-coverage
+meson setup -Dtests=enabled builddir
+meson test -C builddir
 ```