blog - add show_quote to the blog's post template

Signed-off-by: Lachezar Lechev <[email protected]>

content/blog/YYYY-MM-DD-Draft-blog-post.md

@@ -3,6 +3,7 @@
 title = "Your blog post title"
 # You can also override the default blog post template, but that's not required
 # template = "blog_post.html"
+# It is used as the description of the Blog post in the list
 description = "Description of your blog post for the blog listing"
 # The date is set by the filename but we need to use it here,
 # as the file does not contain a valid date "YYYY-MM-DD"
@@ -11,6 +12,10 @@ date = "2022-01-01"
 draft = true
 [extra]
 
+# Show a quote (first 300 characters) from the content of the blog
+# The quote shows below the description.
+show_quote = false
+
 [[extra.author]]
 name = "The AeroRust community"
 # The author's twitter account