docs: convert last traces of progs to mesa/demos repository

v2: fix typo

Reviewed-by: Brian Paul <brianp@vmware.com>
diff --git a/docs/osmesa.html b/docs/osmesa.html
index 0ec67c4..b0609cf 100644
--- a/docs/osmesa.html
+++ b/docs/osmesa.html
@@ -34,8 +34,7 @@
 </p>
 
 <p>
-There are several examples of OSMesa in the <code>progs/osdemos/</code>
-directory.
+There are several examples of OSMesa in the mesa/demos repository.
 </p>
 
 
diff --git a/docs/xlibdriver.html b/docs/xlibdriver.html
index da72662..6b7b029 100644
--- a/docs/xlibdriver.html
+++ b/docs/xlibdriver.html
@@ -150,10 +150,10 @@
 	% export MESA_GAMMA="2.0"		// same gamma for R,G,B
 </pre>
 <p>
-The progs/demos/gamma.c program may help you to determine reasonable gamma
-value for your display.  With correct gamma values, the color intensities
-displayed in the top row (drawn by dithering) should nearly match those
-in the bottom row (drawn as grays).
+The <code>demos/gamma.c</code> program in mesa/demos repository may help
+you to determine reasonable gamma value for your display.  With correct
+gamma values, the color intensities displayed in the top row (drawn by
+dithering) should nearly match those in the bottom row (drawn as grays).
 </p>
 
 <p>