chore: fix lint errors (#16906)

docs/api/protocol.md

@@ -76,18 +76,21 @@ are disabled for non standard schemes. So in general if you want to register a
 custom protocol to replace the `http` protocol, you have to register it as a standard scheme.
 
 `protocol.registerSchemesAsPriviliged` can be used to replicate the functionality of the previous `protocol.registerStandardSchemes`, `webFrame.registerURLSchemeAs*` and `protocol.registerServiceWorkerSchemes` functions that existed prior to Electron 5.0.0, for example:
-```
-# before (<= v4.x)
+
+**before (<= v4.x)**
+```javascript
 // Main
 protocol.registerStandardSchemes(['scheme1', 'scheme2'], { secure: true })
 // Renderer
 webFrame.registerURLSchemeAsPrivileged('scheme1', { secure: true })
 webFrame.registerURLSchemeAsPrivileged('scheme2', { secure: true })
+```
 
-# after (>= v5.x)
+**after (>= v5.x)**
+```javascript
 protocol.registerSchemesAsPriviliged([
   { scheme: 'scheme1', privileges: { standard: true, secure: true } },
-  { scheme: 'scheme2', privileges: { standard: true, secure: true } },
+  { scheme: 'scheme2', privileges: { standard: true, secure: true } }
 ])
 ```