update checkmk entry

- update main link
- add source code link, license, language/platform
- update description from https://checkmk.com/product/features
- fixes https://github.com/awesome-foss/awesome-sysadmin/issues/380

.github/CONTRIBUTING.md

@@ -1,22 +1,23 @@
 # Contribution Guidelines
 
-This is a compilation of **Free and Libre Open Source Software ([FLOSS](https://en.wikipedia.org/wiki/Free_and_open-source_software))**. Restrictive licenses (aka Freeware, Shareware) are *not awesome*.
+This is a compilation of **Free and Libre Open Source Software ([FLOSS](https://en.wikipedia.org/wiki/Free_and_open-source_software))**. Restrictive licenses (aka Freeware, Shareware) are *not awesome*. Please adhere to the following guidelines or your Pull Request will be closed.
+
+**Submitting your own software is not awesome**, unless you have a healthy ecosystem with a few contributors which aren't your sock puppet accounts.
 
 ## Commits
+
 * Search previous suggestions before making a new one.
 * Use the following format: `[RESOURCE](LINK) - DESCRIPTION.`
   * Keep descriptions short (<80 characters).
   * End descriptions with a full stop.
 * Make an individual commit for each category.
   * Order projects alphabetically.
-  * Consolidate multiple commits.
-  
+
 ## Pull Requests
+
+* Consolidate multiple commits.
 * Use imperative (e.g. add instead of added/adding) in the PR title.
 * Include application names, categories and a link to the open source project page in the description.
-
-## Issues
-* Discussion, questions and bug reports only.
-* If you are sure software meets the guidelines, create a Pull Request (see above).
-* Check spelling and grammar.
-* Suggestions for improvements to existing structure are welcome.
+* Write a short text why the application you're adding is actually awesome.
+  * Put only stuff on the list you or another contributor can personally recommend
+  * Recommending your own software is discouraged.

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,9 @@
+### Application name / category
+[awesometool](https://example.com) / Devops
+
+### Source URL
+https://github.example.com/repo
+
+### why it is awesome
+This tool is so awesome because it allows me to do awesome things in my
+awesome corp, especially when I use it to manage awesome othersoftware.

.travis.yml

@@ -0,0 +1,7 @@
+language: ruby
+rvm:
+  - 2.2
+before_script:
+  - gem install awesome_bot
+script:
+  - awesome_bot README.md --allow-dupe --allow-redirect --white-list bestpractical.com/rt,mogilefs,harding,archipel,linuxcontainers,spiceworks