docs: escape special chars

Author: atinux

docs/content/docs/3.recipes/2.drizzle.md

@@ -183,7 +183,7 @@ export default eventHandler(async (event) => {
 
 ### Update
 
-```ts [server/api/todos/[id].patch.ts]
+```ts [server/api/todos/[id\\].patch.ts]
 export default eventHandler(async (event) => {
   const { id } = getRouterParams(event)
   const { completed } = await readBody(event)
@@ -198,7 +198,7 @@ export default eventHandler(async (event) => {
 
 ### Delete
 
-```ts [server/api/todos/[id].delete.ts]
+```ts [server/api/todos/[id\\].delete.ts]
 export default eventHandler(async (event) => {
   const { id } = getRouterParams(event)