✏️ Fix typos

Author: pboling

.devcontainer/devcontainer.json

@@ -1,5 +1,5 @@
 // For format details, see https://aka.ms/devcontainer.json. For config options, see the
-// README at: https://github.com/devcontainers/templates/tree/master/src/ruby
+// README at: https://github.com/devcontainers/templates/tree/main/src/ruby
 {
 	"name": "Ruby",
 	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile

.yard_gfm_support.rb

@@ -15,7 +15,7 @@ def initialize(source, options = {})
 # See:
 # - https://github.com/lsegal/yard/issues/1157
 # - https://github.com/lsegal/yard/issues/1017
-# - https://github.com/lsegal/yard/blob/master/lib/yard/templates/helpers/markup_helper.rb
+# - https://github.com/lsegal/yard/blob/main/lib/yard/templates/helpers/markup_helper.rb
 YARD::Templates::Helpers::MarkupHelper::MARKUP_PROVIDERS[:markdown].insert(
   0,
   {const: "KramdownGfmDocument"},