Feature/fix travis (#286)

* fix: dev: add link to white list

* fix: dev: remove trailing slash

* fix: test: add docjar to whitelist

* new: test: add alias to docjar

* chg: test: add subtle.press link to white list

* chg: test: add sourceforge to whitelist

README.md

@@ -162,7 +162,7 @@ When learning CS, there are some useful sites you must know to get always inform
 - [Seymour](https://harc.github.io/seymour-live2017) : Live Programming for the Classroom
 - [Code share](https://codeshare.io) : Share code in real-time with other developers
 - [Solid Tools for Developers](https://soliddevtools.com) : Online debugging tools for developers and system administrators
-- [OS Query](https://osquery.io/) : Easily ask questions about your Linux, Windows, and macOS infrastructure
+- [OS Query](https://osquery.io) : Easily ask questions about your Linux, Windows, and macOS infrastructure
 
 ## Bash and Shell scripting  
 - [Advanced Bash-Scripting Guide](http://tldp.org/LDP/abs/html/) : An in-depth exploration of the art of shell scripting

white_listed_sites.txt

@@ -1,13 +1,18 @@
 bikeshed.fm
 codepen.io
 haseebq.com
+http://chimera.labs.oreilly.com/books/1234000001805/index.html
 http://www.codergears.com/Blog/
+http://www.docjar.com
 https://artofproblemsolving.com
+https://codecuriosity.org/
 https://forum.xda-developers.com
 https://forum.xda-developers.com/general/xda-university
 https://hackernoon.com/
 https://regexr.com
+https://sourceforge.net
 https://techiedelight.quora.com/500-Data-Structures-and-Algorithms-practice-problems-and-their-solutions
+https://www.subtle.press/course/poor-mans-ci
 learn.hackerearth.com
 medium.freecodecamp.com
 projecteuler.net
@@ -18,6 +23,7 @@ wildlyinaccurate.com
 www.codechef.com
 www.coursera.org
 www.cubrid.org
+www.docjar.com
 www.joelonsoftware.com
 www.quora.com
 www.techotopia.com