[youtube] Add CppCast

content/youtube/channels.yaml

@@ -4,4 +4,7 @@ card_type: channel_card
 id: creators
 title: Creators and educators
 description: Follow channels publishing tutorials, courses, code reviews and practical C++ guidance
-cards: []
+cards:
+  - title: The Cherno
+    channel_type: creator
+    channel_id: UCQ-W1KE9EYfdxhL6S4twUNw

content/youtube/conferences.yaml

@@ -4,4 +4,22 @@ card_type: channel_card
 id: conferences
 title: Conferences
 description: Browse recorded talks from established C++ conferences
-cards: []
+cards:
+  - title: CppCon
+    channel_type: conference
+    channel_id: UCMlGfpWw-RUdWX_JbLCukXg
+  - title: Meeting C++
+    channel_type: conference
+    channel_id: UCJpMLydEYA08vusDkq3FmjQ
+  - title: ACCU Conference
+    channel_type: conference
+    channel_id: UCJhay24LTpO1s4bIZxuIqKw
+  - title: C++ on Sea
+    channel_type: conference
+    channel_id: UCAczr0j6ZuiVaiGFZ4qxApw
+  - title: CppNorth
+    channel_type: conference
+    channel_id: UCGWAlXciy785Iog-X7247Hw
+  - title: C++Online
+    channel_type: conference
+    channel_id: UC9KMtRSOkJVCYwvm8TZipog

content/youtube/organizations.yaml

@@ -4,4 +4,7 @@ card_type: channel_card
 id: organizations
 title: Organizations and shows
 description: Podcasts and channels run by organizations
-cards: []
+cards:
+  - title: CppCast
+    channel_type: show
+    channel_id: UCuCjADS4u3uJDTqUaG0H9dA