kc3-lang/kc3

diff --git a/doc/1_KC3/1.12_Complex.en.md b/doc/1_KC3/1.12_Complex.en.md
index b8825a9..c35baf4 100644
--- a/doc/1_KC3/1.12_Complex.en.md
+++ b/doc/1_KC3/1.12_Complex.en.md
@@ -3,4 +3,14 @@
 Complex numbers are supported in KC3 through the `Complex` type and
 the `+i` infix operator.
 
-## 1.12 Examples
+## 1.12.1 Examples
+
+```elixir
+ikc3> i = 0 +i 1
+0 +i 1
+ikc3> ii = i * i
+-1 +i 0
+ikc3> iii = i +i i
+-1 +i 1
+ikc3> type(i)
+Complex
diff --git a/doc/1_KC3/1.21_Map.en.md b/doc/1_KC3/1.21_Map.en.md
index 863fdf7..59627d8 100644
--- a/doc/1_KC3/1.21_Map.en.md
+++ b/doc/1_KC3/1.21_Map.en.md
@@ -1,4 +1,4 @@
-# 1.3 Map
+# 1.21 Map
 
 KC3 maps are like Elixir maps, they are key-values enclosed in `%{}` :
 
@@ -61,11 +61,6 @@ ikc3> a = Map.put(a, :message, "Hello, world !")
   message: "Hello, world !"}
 ```
 
-
 ---
 
 Top : [KC3 documentation](/doc/)
-
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-
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