Fix typographical errors (#91)

fix typos

bootloader/bootloader.yul

@@ -65,7 +65,7 @@ object "Bootloader" {
             /// @dev The computational overhead for a batch.
             /// It includes the combined price for 1 instance of all the circuits 
             /// (since they might be partially filled), the price for running
-            /// the common parts of the bootloader as well as general maintainance of the system.
+            /// the common parts of the bootloader as well as general maintenance of the system.
             function BATCH_OVERHEAD_L2_GAS() -> ret {
                 ret := {{BATCH_OVERHEAD_L2_GAS}}
             }
@@ -108,7 +108,7 @@ object "Bootloader" {
             }
 
             /// @dev The slot from which the scratch space starts.
-            /// Scatch space is used for various temporary values
+            /// Scratch space is used for various temporary values
             function SCRATCH_SPACE_BEGIN_SLOT() -> ret {
                 ret := 8
             }
@@ -343,7 +343,7 @@ object "Bootloader" {
 
             /// @dev Slots needed to store L1 Messenger pubdata.
             /// @dev Note that are many more these than the maximal pubdata in batch, since 
-            /// it needs to also accomodate uncompressed state diffs that are required for the state diff
+            /// it needs to also accommodate uncompressed state diffs that are required for the state diff
             /// compression verification.
             function OPERATOR_PROVIDED_L1_MESSENGER_PUBDATA_SLOTS() -> ret {
                 ret := {{OPERATOR_PROVIDED_L1_MESSENGER_PUBDATA_SLOTS}}
@@ -2764,7 +2764,7 @@ object "Bootloader" {
                         )
                     }
                     default {
-                        // For L2 transactions, we use near call panic, it will triger the validation 
+                        // For L2 transactions, we use near call panic, it will trigger the validation 
                         // step of the transaction to fail, returning a consistent error message. 
                         nearCallPanic()
                     }
@@ -3881,7 +3881,7 @@ object "Bootloader" {
             setTxOrigin(0)
             setGasPrice(0)
 
-            // Transfering all the ETH received in the block to the operator
+            // Transferring all the ETH received in the block to the operator
             directETHTransfer(
                 selfbalance(),
                 OPERATOR_ADDRESS
@@ -3894,7 +3894,7 @@ object "Bootloader" {
             // So we need to have this method to reflect it in the system contracts too.
             //
             // The reason is that as of now our node requires that each storage write (event, etc) belongs to a particular
-            // L2 block. In case a batch is sealed by timeout (i.e. the resources of the batch have not been exhaused, but we need
+            // L2 block. In case a batch is sealed by timeout (i.e. the resources of the batch have not been exhausted, but we need
             // to seal it to assure timely finality), we need to process sending funds to the operator *after* the last
             // non-empty L2 block has been already sealed. We can not override old L2 blocks, so we need to create a new empty "fictive" block for it.
             //