chore(github): update github contribution files

Author: tinesoft

.github/CODE_OF_CONDUCT.md

@@ -34,7 +34,7 @@ This Code of Conduct applies both within project spaces and in public spaces whe
 
 ## Enforcement
 
-Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by contacting the project team at github@wassim.app. The project team will review and investigate all complaints, and will respond in a way that it deems appropriate to the circumstances. The project team is obligated to maintain confidentiality with regard to the reporter of an incident. Further details of specific enforcement policies may be posted separately.
+Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by contacting the project team at tinesoft@users.noreply.github.com. The project team will review and investigate all complaints, and will respond in a way that it deems appropriate to the circumstances. The project team is obligated to maintain confidentiality with regard to the reporter of an incident. Further details of specific enforcement policies may be posted separately.
 
 Project maintainers who do not follow or enforce the Code of Conduct in good faith may face temporary or permanent repercussions as determined by other members of the project's leadership.
 

.github/CONTRIBUTING.md

@@ -7,10 +7,8 @@ As a contributor, here are the guidelines we would like you to follow:
 * [Code of Conduct](#coc)
 * [Issues and Bugs](#issue)
 * [Feature Requests](#feature)
-* [Coding Rules](#rules)
 * [Git Workflow (AKA Branching/Merging Strategy)](#commit)
 * [Commit Message Guidelines](#commit)
-* [Signing the CLA](#cla)
 
 ## <a name="coc"></a> Code of Conduct
 
@@ -67,7 +65,7 @@ to read on GitHub as well as in various git tools.
 
 The footer should contain a [closing reference to an issue](https://help.github.com/articles/closing-issues-via-commit-messages/) if any.
 
-Samples: (even more [samples](https://github.com/manekinekko/angular-search-experience/commits/master))
+Samples: (even more [samples](https://github.com/angular/angular/commits/master))
 
 ```
 docs(changelog): update changelog to beta.5

.github/ISSUE_TEMPLATE.md

@@ -13,14 +13,14 @@ IF YOU DON'T FILL OUT THE FOLLOWING INFORMATION YOUR ISSUE MIGHT BE CLOSED WITHO
 - or `spring`, 'spring-test`, and `spring-data-elasticsearch` versions:
 ```
 
-### OS Version?
+### Elasticsearch server Version?
 <!--
-> Windows 7, 8 or 10. Linux (which distribution).macOS(Yosemite ? El Capitan? Sierra ?)
+> Version of target Elasticsearch server
 -->
 
-### Elasticsearch server Version?
+### OS Version?
 <!--
-> Version of target Elasticsearch server
+> Windows 7, 8 or 10. Linux (which distribution).macOS(Yosemite ? El Capitan? Sierra ?)
 -->
 
 ### Repro steps