update ubuntu dev setup post

Gemfile.lock

@@ -1,6 +1,11 @@
 GEM
   remote: https://rubygems.org/
   specs:
+    activesupport (5.2.0)
+      concurrent-ruby (~> 1.0, >= 1.0.2)
+      i18n (>= 0.7, < 2)
+      minitest (~> 5.1)
+      tzinfo (~> 1.1)
     addressable (2.5.2)
       public_suffix (>= 2.0.2, < 4.0)
     colorator (1.1.0)
@@ -11,6 +16,10 @@ GEM
     eventmachine (1.2.5)
     ffi (1.9.18)
     forwardable-extended (2.6.0)
+    gemoji (3.0.0)
+    html-pipeline (2.8.0)
+      activesupport (>= 2)
+      nokogiri (>= 1.4)
     http_parser.rb (0.6.0)
     i18n (0.9.1)
       concurrent-ruby (~> 1.0)
@@ -33,6 +42,10 @@ GEM
       sass (~> 3.4)
     jekyll-watch (2.0.0)
       listen (~> 3.0)
+    jemoji (0.10.0)
+      gemoji (~> 3.0)
+      html-pipeline (~> 2.2)
+      jekyll (~> 3.0)
     kramdown (1.16.2)
     liquid (4.0.0)
     listen (3.1.5)
@@ -40,8 +53,12 @@ GEM
       rb-inotify (~> 0.9, >= 0.9.7)
       ruby_dep (~> 1.2)
     mercenary (0.3.6)
+    mini_portile2 (2.3.0)
     minima (2.1.1)
       jekyll (~> 3.3)
+    minitest (5.11.3)
+    nokogiri (1.8.2)
+      mini_portile2 (~> 2.3.0)
     pathutil (0.16.1)
       forwardable-extended (~> 2.6)
     public_suffix (3.0.1)
@@ -56,6 +73,9 @@ GEM
     sass-listen (4.0.0)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
+    thread_safe (0.3.6)
+    tzinfo (1.2.5)
+      thread_safe (~> 0.1)
 
 PLATFORMS
   ruby
@@ -63,9 +83,10 @@ PLATFORMS
 DEPENDENCIES
   jekyll (~> 3.7.0)
   jekyll-feed (~> 0.6)
+  jemoji
   minima (~> 2.0)
   rouge
   tzinfo-data
 
 BUNDLED WITH
-   1.16.0
+   1.16.2

_posts/2018-06-13-ubuntu-quick-dev-setup.md

@@ -56,7 +56,7 @@ Of course, this is not yet a complete setup because I still have to setup Angula
 [Jekyll](https://jekyllrb.com) is a technology that will "Transform your plain text into static websites and blogs." It's like **blogging for hackers**, and I use it for this very blog, hosted for free on Github Pages. When all you need is a quick way to put content online, you can never go wrong with it, believe me.
 
 I will write more about Jekyll and Github Pages later, but for now, here's how I set it up.
-1. Open a text editor, then add the following two lines at end of the file ```~/.bashrc```:
+1. Open a text editor, then add the following two lines at the end of the file ```~/.bashrc```:
 ```bash
 export GEM_HOME=$HOME/gems
 export PATH=$HOME/gems/bin:$PATH