solana: fix admin comments (#102)

Co-authored-by: A5 Pickle <a5-pickle@users.noreply.github.com>

Author: a5-pickle

solana/programs/matching-engine/src/lib.rs

@@ -176,8 +176,8 @@ pub mod matching_engine {
         processor::update_auction_parameters(ctx)
     }
 
-    /// This instruction is used to close an existing proposal by closing the propsal account. This
-    /// instruction can only be called by the `owner`.
+    /// This instruction is used to close an existing proposal by closing the proposal account. This
+    /// instruction can only be called by the `owner` or `owner_assistant`.
     /// # Arguments
     ///
     /// * `ctx` - `CloseProposal` context.
@@ -195,7 +195,7 @@ pub mod matching_engine {
     }
 
     /// This instruction is used to update the `fee_recipient` field in the `Custodian` account. This
-    /// instruction can only be called by the `owner`.
+    /// instruction can only be called by the `owner` or `owner_assistant`.
     /// # Arguments
     ///
     /// * `ctx` - `UpdateFeeRecipient` context.