add: commands for build in readme

diff --git a/readme.md b/readme.md
index c9c86545b4b532b58f6d2ccd95054c6252b62946..447d846ad29ea82018f2c1c9c7538ab83ab46a57 100644 (file)
--- a/readme.md
+++ b/readme.md
@@ -8,6 +8,9 @@ Files to big for a media is in file with number zero.
 
 ## Installation
 
+mkdir build
+cd build
+cmake ..
 make
 make install