docs: spelling error (#519)

Signed-off-by: Zhaolie <[email protected]>

Author: zhaolie-han

src/ImathTest/testToFloat.cpp

@@ -17,7 +17,7 @@ using namespace std;
 
 //
 // This test uses the code that generates the toFLoat.h header to
-// validate the the tabel values are correct.
+// validate the the table values are correct.
 //
 
 //---------------------------------------------------