Fixed typo in README for iOS.
diff --git a/docs/README-ios.md b/docs/README-ios.md
index d2c6877..a0afffb 100644
--- a/docs/README-ios.md
+++ b/docs/README-ios.md
@@ -64,7 +64,7 @@ Notes -- Retina / High-DPI and window sizes
Window and display mode sizes in SDL are in "screen coordinates" (or "points",
in Apple's terminology) rather than in pixels. On iOS this means that a window
-created on an iPhone 6 will have a size in screen cooordinates of 375 x 667,
+created on an iPhone 6 will have a size in screen coordinates of 375 x 667,
rather than a size in pixels of 750 x 1334. All iOS apps are expected to
size their content based on screen coordinates / points rather than pixels,
as this allows different iOS devices to have different pixel densities