qns: update topics

Author: yangshun

packages/quiz/questions/explain-how-a-browser-determines-what-elements-match-a-css-selector/metadata.json

@@ -5,7 +5,7 @@
   "access": "free",
   "duration": 5,
   "published": true,
-  "topics": ["css"],
+  "topics": ["browser", "css"],
   "importance": "high",
   "difficulty": "hard"
 }

packages/quiz/questions/html5-as-an-open-web-platform-building-blocks/metadata.json

@@ -5,7 +5,7 @@
   "access": "free",
   "duration": 5,
   "published": true,
-  "topics": ["html"],
+  "topics": ["browser", "html"],
   "importance": "low",
   "difficulty": "medium"
 }

packages/quiz/questions/what-are-data-attributes-good-for/metadata.json

@@ -5,7 +5,7 @@
   "access": "free",
   "duration": 5,
   "published": true,
-  "topics": ["html", "testing"],
+  "topics": ["web-api", "html", "testing"],
   "importance": "medium",
   "difficulty": "medium"
 }

packages/quiz/questions/what-are-the-different-ways-to-visually-hide-content-and-make-it-available-only-for-screen-readers/metadata.json

@@ -5,7 +5,7 @@
   "access": "free",
   "duration": 5,
   "published": true,
-  "topics": ["css", "a11y"],
+  "topics": ["a11y", "css"],
   "importance": "medium",
   "difficulty": "medium"
 }

packages/quiz/questions/whats-the-difference-between-feature-detection-feature-inference-and-using-the-ua-string/metadata.json

@@ -5,7 +5,7 @@
   "access": "free",
   "duration": 5,
   "published": true,
-  "topics": ["javascript"],
+  "topics": ["browser", "javascript"],
   "importance": "medium",
   "difficulty": "medium"
 }

packages/quiz/questions/why-would-you-use-something-like-the-load-event-does-this-event-have-disadvantages-do-you-know-any-alternatives-and-why-would-you-use-those/metadata.json

@@ -5,7 +5,7 @@
   "access": "free",
   "duration": 5,
   "published": true,
-  "topics": ["javascript"],
+  "topics": ["web-api", "javascript"],
   "importance": "low",
   "difficulty": "hard"
 }