docs(coverage): correct include glob pattern (#8893)

Author: oller

docs/guide/coverage.md

@@ -174,7 +174,7 @@ import { defineConfig } from 'vitest/config'
 export default defineConfig({
   test: {
     coverage: {
-      include: ['src/**.{ts,tsx}']
+      include: ['src/**/*.{ts,tsx}']
     },
   },
 })
@@ -208,7 +208,7 @@ import { defineConfig } from 'vitest/config'
 export default defineConfig({
   test: {
     coverage: {
-      include: ['src/**.{ts,tsx}'],
+      include: ['src/**/*.{ts,tsx}'],
       exclude: ['**/utils/users.ts']
     },
   },