Improve ATOM feed generation (#10)

* [ADD] Improving ATOM feeds. Removing all the code which were generating pie chart using D3 lib. For generating correct ATOM feed, removing HTML code as a part of post body and coverting it to png image.

Author: ultimatecoder

_config.yml

@@ -21,7 +21,7 @@ description: > # this means to ignore newlines until "baseurl:"
   my blog posts to identify my taste of writing.
 
 baseurl: "" # the subpath of your site, e.g. /blog
-url: "" # the base hostname & protocol for your site, e.g. http://example.com
+url: "http://blog.jaysinh.com" # the base hostname & protocol for your site, e.g. http://example.com
 twitter_username: jaysinhp
 github_username:  ultimatecoder
 
@@ -35,3 +35,9 @@ exclude:
   - Gemfile.lock
 
 google_analytics: UA-57792488-6
+defaults:
+  -
+    scope:
+      path: ""
+    values:
+      author: "Jaysinh Shukla"

_posts/2016-12-30-book-review-i-want-2-do-project-tell-me-wat-2-do.md

@@ -3,6 +3,7 @@ layout: post
 categories: book review
 title: Book review 'i want 2 do project tell me wat 2 do'
 tag: books
+excerpt: Inspirational book for students who are at a fresher level.
 ---
 
 ![i_want_2_do_project_tell_me_wat_2_do]({{ site.url}}/assets/images/book_image_i_want_2_do_project_tell_me_wat_2_do.jpg)

_posts/2017-01-08-2016-a-year-dedicated-to-python-workshops.md

@@ -2,6 +2,10 @@
 layout: post
 title: 2016 A year dedicated to Python Workshops
 tag: pythonworkshop
+excerpt: >
+  Beautiful 2017 has already started. While everybody is busy with preparing
+  resolutions for their new year I decided to look back and share my journey
+  here.
 ---
 
 Beautiful 2017 has already started. While everybody is busy with preparing 
@@ -13,80 +17,8 @@ took an oath to spread the word of Python. It was looking simple at first
 glance with a guess of getting less invitations. But the estimate went wrong.
 Below is the summary of yearly progress highlight with word of experience.
 
-
-<link rel="stylesheet" type="text/css" href="{{site.url}}/assets/css/nv.d3.min.css">
-
-<style>
-    #chart svg {
-      height: 400px;
-    }
-
-    svg: {
-      display: block;
-    }
-
-    svg text {
-      font: normal 8px Impact;
-    }
-
-    .center {
-      text-align: center
-    }
-
-</style>
-
-<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.2/d3.min.js" charset="utf-8"></script>
-
-<script src="{{ site.url }}/assets/js/nv.d3.min.js"></script>
-
-<script>
-
-function GetData() {
-  return  [
-    {
-      "label": "Introduction to Django",
-      "value" : 1
-    },
-    {
-      "label": "My name is Python and I am not terrorist",
-      "value" : 1
-    },
-    {
-      "label": "Beginning with Python",
-      "value" : 2
-    },
-    {
-      "label": "Let's learn Python",
-      "value" : 5
-    },
-    {
-      "label": "Token based authentication system using JWT",
-      "value" : 4
-    },
-  ];
-}
-
-nv.addGraph(function() {
-  var chart = nv.models.pieChart()
-      .x(function(d) { return d.label })
-      .y(function(d) { return d.value })
-      .showLabels(true)
-      .labelType("value");
-
-  d3.select("#chart svg")
-      .datum(GetData())
-      .transition().duration(350)
-      .call(chart);
-
-  return chart;
-});
-
-</script>
-
-<div id="chart">
-  <svg></svg>
-</div>
-
+![Python workshop
+piechart]({{site.url}}/assets/images/python_workshop_piechart.png)
 
 During my last year I conducted 13 workshops at various colleges of
 state Gujarat and Rajasthan. 10 workshops were conducted targeting college

_posts/2017-01-22-visit-to-linux-user-group-chennai.md

@@ -2,6 +2,9 @@
 layout: post
 title: Visit to Indian Linux User Group, Chennai
 tag: ILUG-C
+excerpt: >
+  Lately I was travelling to Chennai for some personal work. I was very clear on
+  meeting Mr. Shakthi Kannan. While travelling to Chennai I dropped a mail
 ---
 
 ![Indian Linux User Group Chennai]({{site.url}}/assets/images/ilugc.jpg)

_posts/2017-02-28-book-review-introduction-to-the-commandline.md

@@ -3,6 +3,11 @@ layout: post
 categories: book review
 title: Book review 'Introduction to the Command Line'
 tag: books linux programming
+excerpt: >
+  Every chapter will introduce a bunch of comands and will point to its
+  respective documentation for further learning. You should expect chapters
+  describing from the grep command to GNU Octave which is a scientific
+  programming language. The chapters are independent of each other.
 ---
 ![introduction_to_command_line]({{ site.url
 }}/assets/images/book_image_introduction_to_the_commandline.jpg)

_posts/2017-03-14-pycon-pune-2017-a-wonderful-python-conference.md

@@ -3,6 +3,11 @@ layout: post
 title: "Pycon Pune 2017: A wonderful Python conference"
 date: "2017-03-14 18:18:02 +0530"
 tag: python conference
+excerpt: >
+  The conference is worth attending if you are a student, programmer or a
+  hobbyist.  If you are a swag-hungry then don't expect much as a swag from this
+  conference. If you are a Devsprint lover, then this conference has the coolest
+  Devsprint. A great number of keynote speakers are invited for this conference.
 ---
 
 ![pycon_pune_group_photo]({{

_posts/2017-04-10-goyo-doc-vim-helpfile-for-goyo-plugin.md

@@ -2,6 +2,10 @@
 layout: post
 title: "goyo-doc: Vim helpfile for goyo.vim plugin"
 date: "2017-04-10 17:51:48 +0530"
+excerpt: >
+  Goyo is the vim plugin which allows writers to focus on their writing while
+  they are writing. The plugin deactivates not required fancy windows which are
+  not useful at the time of using vim for writing. It provides certain
 ---
 
 ![goyo_doc_plugin]({{site.url}}/assets/images/goyo_doc_plugin.png)