diff --git a/Sensor-API.md b/Sensor-API.md
index 1c0a36ef..3a3aa2c6 100644
--- a/Sensor-API.md
+++ b/Sensor-API.md
@@ -244,10 +244,11 @@ This functions checks if the I2C address `addr` is in use.
 
 
 ## Useful pre-processor directives
-### PSTR("string")
+#### PSTR("string")
 This pre-processor directive saves RAM by storing strings in flash instead of RAM.
 
-const char MyTextStaticVariable[] PROGMEM = "string";
+#### const char MyTextStaticVariable[] PROGMEM = "string";
+
 This pre-processor directive saves RAM by storing strings in flash instead of RAM.
 
-You may then reference them directly (if the type matches the parameter required) or force it to 4 byte alignment by using the variable as FPSTR(MyTextStaticVariable)
+You may then reference them directly (if the type matches the parameter required) or force it to 4 byte alignment by using the variable as `FPSTR(MyTextStaticVariable)`