Fix examples that create topic using category name strings

Fix examples that create topic using category name strings

Only category id is supported as argument after this change: FIX: Consistently handle category param by oblakeerickson · Pull Request #7599 · discourse/discourse · GitHub

diff --git a/examples/change_topic_status.rb b/examples/change_topic_status.rb
index eaf9984..70efc9e 100644
--- a/examples/change_topic_status.rb
+++ b/examples/change_topic_status.rb
@@ -7,7 +7,7 @@ client.api_key = "YOUR_API_KEY"
 client.api_username = "YOUR_USERNAME"
 
 response = client.create_topic(
-    category: "Boing Boing",
+    category: 1,
     skip_validations: true,
     auto_track: false,
     title: "Concert Master: A new way to choose",
diff --git a/examples/create_topic.rb b/examples/create_topic.rb
index 1999329..5199858 100644
--- a/examples/create_topic.rb
+++ b/examples/create_topic.rb
@@ -7,7 +7,7 @@ client.api_key = "YOUR_API_KEY"
 client.api_username = "YOUR_USERNAME"
 
 client.create_topic(
-  category: "Boing Boing",
+  category: 1,
   skip_validations: true,
   auto_track: false,
   title: "Concert Master: A new way to choose",
@@ -16,7 +16,7 @@ client.create_topic(
 
 # create Poll topic
 client.create_topic(
-  category: "general",
+  category: 2,
   skip_validations: false,
   auto_track: false,
   title: "Your Favorite Color?",

GitHub sha: 1ef0d9ac