docs: replace autotools intructions with meson equivalent

Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
diff --git a/docs/faq.html b/docs/faq.html
index 6270a07..3d73706 100644
--- a/docs/faq.html
+++ b/docs/faq.html
@@ -236,22 +236,22 @@
 Mesa version number.
 </li></ul>
 <p>
-When configuring Mesa, there are three autoconf options that affect the install
+When configuring Mesa, there are three meson options that affect the install
 location that you should take care with: <code>--prefix</code>,
-<code>--libdir</code>, and <code>--with-dri-driverdir</code>. To install Mesa
+<code>--libdir</code>, and <code>-D dri-drivers-path</code>. To install Mesa
 into the system location where it will be available for all programs to use, set
 <code>--prefix=/usr</code>. Set <code>--libdir</code> to where your Linux
 distribution installs system libraries, usually either <code>/usr/lib</code> or
-<code>/usr/lib64</code>. Set <code>--with-dri-driverdir</code> to the directory
+<code>/usr/lib64</code>. Set <code>-D dri-drivers-path</code> to the directory
 where your Linux distribution installs DRI drivers. To find your system's DRI
 driver directory, try executing <code>find /usr -type d -name dri</code>. For
 example, if the <code>find</code> command listed <code>/usr/lib64/dri</code>,
-then set <code>--with-dri-driverdir=/usr/lib64/dri</code>.
+then set <code>-D dri-drivers-path=/usr/lib64/dri</code>.
 </p>
 <p>
 After determining the correct values for the install location, configure Mesa
-with <code>./configure --prefix=/usr --libdir=xxx --with-dri-driverdir=xxx</code>
-and then install with <code>sudo make install</code>.
+with <code>meson configure --prefix=/usr --libdir=xxx -D dri-drivers-path=xxx</code>
+and then install with <code>sudo ninja install</code>.
 </p>
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