add todo

Signed-off-by: microwavedcola1 <microwavedcola@gmail.com>

programs/mango-v4/src/instructions/perp_place_order.rs

@@ -76,6 +76,8 @@ pub fn perp_place_order(
     // When the limit is reached, processing stops and the instruction succeeds.
     limit: u8,
 ) -> Result<()> {
+    // TODO: check pre and post health
+
     let mut mango_account = ctx.accounts.account.load_mut()?;
     require!(mango_account.is_bankrupt == 0, MangoError::IsBankrupt);
     let mango_account_pk = ctx.accounts.account.key();