1 files changed, 31 insertions, 24 deletions

diff --git a/README.md b/README.md
index 1874a962..6d48adaf 100644
--- a/README.md
+++ b/README.md
@@ -45,42 +45,49 @@ Simple CMap, int -> int:
 #include "cmap.h"
 declare_CMap(ii, int, int);
 
-CMap_ii nums = cmap_initializer;
-cmap_ii_put(&nums, 8, 64);
-cmap_ii_put(&nums, 11, 121);
-printf("%d\n", cmap_ii_get(nums, 8)->value);
-cmap_ii_destroy(&nums);
+int main() {
+  CMap_ii nums = cmap_initializer;
+  cmap_ii_put(&nums, 8, 64);
+  cmap_ii_put(&nums, 11, 121);
+  printf("%d\n", cmap_ii_get(nums, 8)->value);
+  cmap_ii_destroy(&nums);
+}
 ```
 Simple CMap with CString keys -> int values
 ```
+#include "cstring.h"
 #include "cmap.h"
 declare_CMap_StringKey(si, int); // Just a shorthand macro for the general declare call.
 // Keys strings are "magically" managed internally, although CMap is ignorant of CString.
 
-CMap_si nums = cmap_initializer;
-cmap_si_put(&nums, "Hello", 64);
-cmap_si_put(&nums, "Groovy", 121);
-cmap_si_put(&nums, "Groovy", 200); // overwrite previous
-// iterate the map:
-for (cmap_si_iter_t i = cmap_si_begin(nums); i.item != cmap_si_end(nums).item; i = cmap_si_next(i))
-  printf("%s: %d\n", i.item->key.str, i.item->value);
-
-// or rather use the short form:
-cforeach (i, cmap_si, nums)
-  printf("%s: %d, changed: %s\n", i.item->key.str, i.item->value, i.item->changed ? "yes" : "no");
+int main() {
+  CMap_si nums = cmap_initializer;
+  cmap_si_put(&nums, "Hello", 64);
+  cmap_si_put(&nums, "Groovy", 121);
+  cmap_si_put(&nums, "Groovy", 200); // overwrite previous
+  // iterate the map:
+  for (cmap_si_iter_t i = cmap_si_begin(nums); i.item != cmap_si_end(nums).item; i = cmap_si_next(i))
+    printf("%s: %d\n", i.item->key.str, i.item->value);
+  // or rather use the short form:
+  cforeach (i, cmap_si, nums)
+    printf("%s: %d, changed: %s\n", i.item->key.str, i.item->value, i.item->changed ? "yes" : "no");
 
-cmap_si_destroy(&nums);
+  cmap_si_destroy(&nums);
+}
 ```
 CMap with CString keys -> CString values. Temporary values are created by "make", and moved to the container.
 ```
+#include "cstring.h"
 #include "cmap.h"
 declare_CMap_StringKey(ss, CString, cstring_destroy); 
 
-CMap_ss table = cmap_initializer;
-cmap_ss_put(&table, "Hello", cstring_make("Goodbye"));
-cmap_ss_put(&table, "Groovy", cstring_make("Shaky"));
-printf("Groovy: %s\n", cmap_ss_get(table, "Groovy")->value.str);
-cmap_ss_erase(&table, "Hello");
-printf("size %d\n", cmap_size(table));
-cmap_ss_destroy(&table); // frees key and value CStrings, and hash table (CVector).
+int main() {
+  CMap_ss table = cmap_initializer;
+  cmap_ss_put(&table, "Hello", cstring_make("Goodbye"));
+  cmap_ss_put(&table, "Groovy", cstring_make("Shaky"));
+  printf("Groovy: %s\n", cmap_ss_get(table, "Groovy")->value.str);
+  cmap_ss_erase(&table, "Hello");
+  printf("size %d\n", cmap_size(table));
+  cmap_ss_destroy(&table); // frees key and value CStrings, and hash table (CVector).
+}
 ```