Convert tabs to spaces

Author: facelessuser

docs/src/markdown/wavelengths.md

@@ -151,12 +151,12 @@ If it is desired, scaling can be turned off, and the color will be created from
 
 ```py play
 Steps(
-	[
-		c.clip()
-		for c in Color.steps(
-			[Color.from_wavelength('srgb', r, scale=False) for r in range(380, 751, 1)],
-			steps=500
-		)
-	]
+    [
+        c.clip()
+        for c in Color.steps(
+            [Color.from_wavelength('srgb', r, scale=False) for r in range(380, 751, 1)],
+            steps=500
+        )
+    ]
 )
 ```