New faqs (#466)

* first draft

* fix links

* fix links

* several changes

* fix link

* fix format

* all content updated

* slight formatting

* fix format

* formatting FAQs

* fix images

* fix image

* fix images

* fixes

* fix url

* fix link

Author: nearnshaw

content/player/FAQs/places.md

@@ -5,7 +5,7 @@ description: Places
 categories:
   - Decentraland
 type: Document
-url: /player/FAQs/seplacescurity
+url: /player/FAQs/places
 weight: 5
 ---
 

content/player/_index.md

@@ -75,7 +75,7 @@ url: /player
 <div class="dcl section medium">
   <p>Find help about the various topics in each of these sections</p>
   <div class="section-cards-container">
-    <a href="/player/general/introduction/">
+    <a href="/player/general/about">
       <div class="section-card" style="background: linear-gradient(212.97deg, rgb(235, 73, 90) 0%, rgb(212, 83, 223) 100%);">
         <img class="section-card-img" src="https://cdn.decentraland.org/@dcl/docs-site/1.0.0-3144676401.commit-a407e4c/player-world.png">
         <div class="section-card-info">