Merge pull request #178 from dynamsoft-docs/preview

update to internal commit 6066135c

Author: Jenny-Jiani

.gitignore

@@ -1,3 +1,4 @@
 
 .DS_Store
 /.vs
+/.history

_plugins/custom_alerts.rb

@@ -0,0 +1,23 @@
+module Jekyll
+  class AlertsConverter < Converter
+
+    def matches(ext)
+      ext =~ /^\.md|\.markdown$/i
+    end
+
+    def output_ext(ext)
+      ".html"
+    end
+
+    def convert(content)
+      content.gsub(/^> \[!(NOTE|TIP|IMPORTANT|WARNING|CAUTION)\]\s*(.*)/i) do
+        type = $1.downcase
+        text = $2.strip.gsub(/^>\s*/, "")
+        <<~HTML
+        <div class="blockquote-#{type}"></div>
+        <blockquote>#{text}</blockquote>
+        HTML
+      end
+    end
+  end
+end