snippets: add an hugo snippet for blockquote

- Adds a snippet useful when writting markdown content in hugo that
  helps using a shortcode for a blockquote, with language code, author,
  title, link and the quoted text.

Co-Authored-by: iGor milhit <igor@milhit.ch>

my_snippets/markdown.lua

@@ -216,5 +216,30 @@ return {
       dscr = "Insert an HTML comment for references, but in French."
     },
     t("<!-- références -->")
+  ),
+  s(
+    {
+      trig="bq",
+      name = "[hugo] Blockquote shortcode",
+      dscr="Insert the shortcode for a blockquote used in my HUGO website.",
+      docstring = "{{< blockquote lang=\"[lang code]\" author=\"[author]\"\n  title=\"[title]\"\n  link=\"[link]\" >}}\n\n[Quoted text]\n{{< /blockquote >}}."
+    },
+    fmt(
+      [[
+        {{< blockquote lang="{1}" author="{2}"
+            title="{3}"
+            link="{4}" >}}
+
+        {5}
+        {{< /blockquote >}}
+      ]],
+      {
+        i(1, "Lang code"),
+        i(2, "Author"),
+        i(3, "Title"),
+        i(4, "Link"),
+        i(5, "Quoted text")
+      }
     )
+  ),
 }