Add code block formatting

Author: bradleycamacho

pages/stack/smart-contracts/upgrade-op-contracts-1-3-1-8.mdx

@@ -47,7 +47,7 @@ Ensure both files are correctly formatted, using the exact field names shown in
 
 `deployments.json`:
 
-```
+```json
 {
   "AddressManager": "0xEF8115F2733fb2033a7c756402Fc1deaa56550Ef",
   "L2OutputOracleProxy": "0x9E6204F750cD866b299594e2aC9eA824E2e5f95c",
@@ -63,7 +63,7 @@ Ensure both files are correctly formatted, using the exact field names shown in
 
 `deploy-config.json`:
 
-```
+```json
 {
   "l1StartingBlockTag": "0x10aa183",
   "l1ChainID": 1,
@@ -145,22 +145,22 @@ Ensure both files are correctly formatted, using the exact field names shown in
 }
 ```
 
-Make sure that important addresses (like the ProxyAdmin, PAO, all L1 addresses, L2OO) are actually up to date by cross checking the Superchain Registry and on-chain (you can do this easily with [`op-fetcher`](https://github.com/ethereum-optimism/optimism/tree/develop/op-fetcher), especially for the `deployments.json`.
+Make sure that important addresses (like the `ProxyAdmin`, `PAO`, all L1 addresses, `L2OO`) are actually up to date by cross checking the Superchain Registry and on-chain (you can do this easily with [`op-fetcher`](https://github.com/ethereum-optimism/optimism/tree/develop/op-fetcher), especially for the `deployments.json`.
 
 ## Step-by-step upgrade process
 
 ### 1. Create your working directory
 
 Create a working directory:
 
-```
+```shell
 mkdir upgrade-dir
 cd upgrade-dir
 ```
 
 And then  create an outputs directory:
 
-```
+```shell
 mkdir outputs
 ```
 
@@ -172,7 +172,7 @@ Copy your `deployments.json` and `deploy-config.json` into the working directory
 
 Create and update an `.env` file with the required information:
 
-```
+```json
 ##############################################
 #               ↓  Required  ↓               #
 ##############################################