Corrected a couple of minor typos (#6910)

Co-authored-by: futreall <[email protected]>

corelib/src/starknet.cairo

@@ -101,7 +101,7 @@ fn use_system_implicit() implicits(System) {}
 /// The `Result` type for a syscall.
 pub type SyscallResult<T> = Result<T, Array<felt252>>;
 
-/// Trait for handling syscalls results.
+/// Trait for handling syscall results.
 pub trait SyscallResultTrait<T> {
     /// Unwraps a syscall result, yielding the content of an `Ok`.
     ///

corelib/src/starknet/storage/sub_pointers.cairo

@@ -1,8 +1,8 @@
 use super::{Mutable, StorageAsPointer, StoragePointer, StoragePointer0Offset};
 
 /// Similar to storage node, but for structs which are stored sequentially in the storage. In
-/// contrast to storage node, the fields of the struct are just offsetted from the base address of
-/// the struct.
+/// contrast to storage node, the fields of the struct are just at an offset from the base address
+/// of the struct.
 pub trait SubPointers<T> {
     /// The type of the storage pointers, generated for the struct T.
     type SubPointersType;