Fix a typo in the `String.to_float` description

(cherry picked from commit 9744657bb8410ecfaa462a2c575a68c9b40cfbad)

doc/classes/String.xml

@@ -920,11 +920,11 @@
 			<description>
 				Converts the string representing a decimal number into a [float]. This method stops on the first non-number character, except the first decimal point ([code].[/code]) and the exponent letter ([code]e[/code]). See also [method is_valid_float].
 				[codeblock]
-				var a = "12.35".to_float() # a is 12.35
-				var b = "1.2.3".to_float() # b is 1.2
-				var c = "12xy3".to_float() # c is 12.0
-				var d = "1e3".to_float()   # d is 1000.0
-				var e = "Hello!".to_int()  # e is 0.0
+				var a = "12.35".to_float()  # a is 12.35
+				var b = "1.2.3".to_float()  # b is 1.2
+				var c = "12xy3".to_float()  # c is 12.0
+				var d = "1e3".to_float()    # d is 1000.0
+				var e = "Hello!".to_float() # e is 0.0
 				[/codeblock]
 			</description>
 		</method>