diff --git a/.gitignore b/.gitignore
index 87e24d9..a9b854b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -32,6 +32,9 @@
 *.out
 *.app
 
+# Hex files
+*.hex
+
 # ---> Vim
 # Swap
 [._]*.s[a-v][a-z]
diff --git a/README.md b/README.md
index 8363ee1..0438259 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,10 @@
 # nucleo-l476rg-examples
 
-Code examples for the NUCLEO-L476RG development board
\ No newline at end of file
+Code examples for the NUCLEO-L476RG development board.
+
+**0.** Configure the processor to run at 80MHz using the phase-locked loop
+(PLL).
+
+**1.** ADC configuration and polled sampling. Set output LED according to a
+threshold.
+