Add Meta tags to blog

We have to add two meta tags to the head section of the template.One is the Meta description which describes your site and another one is Meta Keywords which tells about your site keywords(what your site is all about)
Here is how to add meta tags to your blogger(blogspot) blog:
1.Sign in to your blogger dashboard>click the 'layout' button[see the screenshot below]
%3Cmeta content='DESCRIPTION HERE' name='description'/%3E
%3Cmeta content='KEYWORDS HERE' name='keywords'/%3E
%3Cmeta content='AUTHOR NAME HERE' name='author'/%3E
DESCRIPTION HERE:Write your blog description
KEYWORDS:Write the keywords of your blog
AUTHOR NAME:Write the author's name(Your name)

3.Add the above code just after this [Look at the below screenshot]
%3Cb:include data='blog' name='all-head-content'/%3E
IMPORTANT:
Several people were filling with just the keywords in the description.DON'T DO THAT.Google and other search engines will ban your site from the search engines list if you did so.And also,don't repeat the keyword more than 3 times.
That's it!You have sucessfully added the metatags to your blogger(blogpsot) blog.If you want to check whether you added the meta tags correctly or not,just type 'meta tags analyzer tool' in the google and you will find so many sites which can check whether you have added the tags correctly or not.