diff --git a/README.md b/README.md
index b84cb23..15eaf3d 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,10 @@
-The SDA5708 is 8 digit 7x5 led matrix display, the font used by the hardware is defined in software
+The SDA5708 is 8 digit 7x5 led matrix display, the font used by the display is defined in
+software.
 
 This is a C library and example to control the display using a Raspberry Pi Pico communicating with the display using SPI.
 
 Hardware reference: [https://www.sbprojects.net/knowledge/footprints/sda5708/index.php](!https://www.sbprojects.net/knowledge/footprints/sda5708/index.php).
 
-You can copy the files `sda5708.h` `sda5708.c` `sda5708_fonts.h` for use in another Pico project
+You can copy the files `sda5708.h` `sda5708.c` `sda5708_fonts.h` for use in another Pico
+project (remember to add `sda5708.c` in the CMakeLists.txt). It requires SPI library in the
+project.