Propose some references about ci/cd solutions compatibles with gitea (#7996)

* Propose some references about ci/cd solutions compatibles with gitea

* No note about theirs integration level, only a starting point.

* Update docs/content/doc/advanced/ci-cd.en-us.md

Improve text

Co-Authored-By: Lauris BH <lauris@nix.lv>

* Improve link to CI solutions

Update docs/content/doc/advanced/ci-cd.en-us.md

Co-Authored-By: Lauris BH <lauris@nix.lv>

* Update docs/content/doc/advanced/ci-cd.en-us.md

Typo in name :/

Co-Authored-By: John Olheiser <42128690+jolheiser@users.noreply.github.com>

* Remove redundant empty line

* Invite user to consult new CI/CD page

* Link target CI tools

* Jenkins and its plugin

* Update docs/content/doc/advanced/third-party-tools.en-us.md

Simplify link CI/CD

Co-Authored-By: John Olheiser <42128690+jolheiser@users.noreply.github.com>

* Update docs/content/doc/advanced/ci-cd.en-us.md

Typo

Co-Authored-By: John Olheiser <42128690+jolheiser@users.noreply.github.com>

* Provide gitea documentation about drone usage

    Co-Authored-By: John Olheiser <42128690+jolheiser@users.noreply.github.com>

* Update docs/content/doc/advanced/ci-cd.en-us.md

Co-Authored-By: Lauris BH <lauris@nix.lv>

* Apply suggestions from code review

Co-Authored-By: Lauris BH <lauris@nix.lv>

docs/content/doc/advanced/ci-cd.en-us.md

@@ -0,0 +1,31 @@
+---
+date: "2019-08-27:00:00+02:00"
+title: "CI/CD Usage"
+slug: "ci-cd"
+weight: 40
+toc: true
+draft: false
+menu:
+  sidebar:
+    parent: "advanced"
+    name: "CI/CD Usage"
+    weight: 40
+    identifier: "ci-cd"
+---
+
+# Gitea and CI/CD
+
+**NOTE:** These tools are not endorsed by Gitea. They are listed here for convenience only.
+
+## Listing
+
+CI/CD solutions that have integration with Gitea. Following list is not complete,
+the purpose is to give a starting point to integrate a CI/CD process with your Gitea instance.
+
+ - [Drone](https://drone.io) with [Gitea documentation](https://docs.drone.io/installation/gitea/)
+ - [Jenkins](https://jenkins.io/) with [Gitea plugin](https://plugins.jenkins.io/gitea)
+ - [Agola](https://agola.io)
+ - [Buildkite](https://buildkite.com) with [Gitea connector](https://github.com/techknowlogick/gitea-buildkite-connector)
+
+Others CI/CD solutions that partially can be integrated with Gitea:
+ - [Concourse](https://www.concourse-ci.org), see more information at [Concourse community forum](https://discuss.concourse-ci.org/t/concourse-ci-and-gitea-oauth/1475)

docs/content/doc/advanced/third-party-tools.en-us.md

@@ -19,10 +19,8 @@ menu:
 *This is by no means a complete list, so feel free to ask about adding more!*
 
 ### Continuous Integration
-[BuildKite Connector](https://github.com/techknowlogick/gitea-buildkite-connector)  
-[Jenkins Plugin](https://github.com/jenkinsci/gitea-plugin)  
-[Using Gitea with Drone](https://docs.drone.io/installation/gitea/)
 
+Check our [CI/CD page]({{< relref "doc/advanced/ci-cd.en-us.md" >}})
 
 ### Migrating
 [Installation script for Gitea](https://git.coolaj86.com/coolaj86/gitea-installer.sh)