add the problematic missing docs as TODOs

src/kzg10/mod.rs

@@ -260,6 +260,7 @@ where
         Ok((witness_polynomial, random_witness_polynomial))
     }
 
+    /// TODO: missing documentation
     pub fn open_with_witness_polynomial<'a>(
         powers: &Powers<E>,
         point: P::Point,
@@ -410,6 +411,7 @@ where
         Ok(result)
     }
 
+    /// TODO: missing documentation
     pub fn check_degree_is_too_large(degree: usize, num_powers: usize) -> Result<(), Error> {
         let num_coefficients = degree + 1;
         if num_coefficients > num_powers {
@@ -422,6 +424,7 @@ where
         }
     }
 
+    /// TODO: missing documentation
     pub fn check_hiding_bound(hiding_poly_degree: usize, num_powers: usize) -> Result<(), Error> {
         if hiding_poly_degree == 0 {
             Err(Error::HidingBoundIsZero)
@@ -438,6 +441,7 @@ where
         }
     }
 
+    /// TODO: missing documentation
     pub fn check_degrees_and_bounds<'a>(
         supported_degree: usize,
         max_degree: usize,