diff --git a/README.md b/README.md
index 47b4bd9..d792c82 100644
--- a/README.md
+++ b/README.md
@@ -5,10 +5,18 @@
 
 A printable object for storing pills that can be parametrized to fit most round tablets.
 
-I Originally designed this between December 2019 and January 2020 to keep track of loose pills and to keep them intact.
+I originally designed this between December 2019 and January 2020 to keep track of loose pills and to keep them intact.
 
 Features:
  - Variable amount of variable-sized compartments for individual pills.
  - Spring detent for every compartment position.
  - Optional built-in spliting aid.
  - Optional attachment hole/keychain ring.
+
+Instructions:
+ - Generating / using the model:
+   - Option 1: The file itself contains an example that can be customized to suit your needs.
+   - Option 2: The files modules can be used in other projects via `use <…/pill_dispenser.scad>`.
+ - Assembly:
+   (As in the image) 
+   Insert the carrier into the shroud with the flat end forward and the compartments facing away from the slot.
diff --git a/pill_dispenser.png b/pill_dispenser.png
index b1320dd..96fef22 100644
Binary files a/pill_dispenser.png and b/pill_dispenser.png differ
diff --git a/pill_dispenser.scad b/pill_dispenser.scad
index 3869931..832d1ef 100644
--- a/pill_dispenser.scad
+++ b/pill_dispenser.scad
@@ -15,7 +15,7 @@ keyring=false;      // adds a keyring
 splitting_aid=true; // splitting aid
 
 
-// implementation
+// instantiation
 translate([0,15,0])color([0.6,0.7,0.8]){
     carrier(amount,diameter,heigth,with_splitter=splitting_aid);
 }