README.md: Fix typo: INSTALL => INSTALL.txt

diff --git a/README.md b/README.md
index 40e3f4afdb4892990f3b9534b8dafa538fe9614d..5196c3fb1aec2e970e2a5e9003e3d1e18a8b3335 100644 (file)
--- a/README.md
+++ b/README.md
@@ -42,7 +42,7 @@ build libpcap, also originally from LBL and now being maintained by
 tcpdump.org; see http://www.tcpdump.org/ .
 
 Once libpcap is built (either install it or make sure it's in
-`../libpcap`), you can build tcpdump using the procedure in the `INSTALL`
+`../libpcap`), you can build tcpdump using the procedure in the `INSTALL.txt`
 file.
 
 The program is loosely based on SMI's "etherfind" although none of the