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diff --git a/docs/README.md b/docs/README.md
index b3e82772..763f863a 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -121,6 +121,30 @@ say("world!")
 
 ---
 
+### `sleep`
+
+**Description:**  
+Pause execution for a given number of seconds.
+
+**Usage:**  
+```markdown
+sleep(seconds: Num) -> Void
+```
+
+**Parameters:**
+
+- `seconds`: How many seconds to sleep for.
+
+**Returns:**  
+Nothing.
+
+**Example:**  
+```markdown
+sleep(1.5)
+```
+
+---
+
 ### `fail`
 
 **Description:**