Add notes to template issues for new users using the template

.github/ISSUE_TEMPLATE/major-release.md

@@ -9,3 +9,10 @@ labels: "bot, priority/critical-urgent"
 Hey, Kebechet!
 
 Create a new major release, please.
+
+
+**IMPORTANT NOTES**
+
+- _If [Khebut GitHub App Bot](https://github.com/apps/khebhut) is installed, this issue will trigger a major release. The bot will open a Pull Request to update the CHANGELOG, fix the opened issue and create a tag._
+
+- _Only users that are allowed to release (a.k.a. maintainers specified in the .thoth.yaml file) can open the issue, otherwise bot will reject them, commenting and closing the issue. If [AICoE CI GitHub App](https://github.com/apps/aicoe-ci) is installed, once the pull request is merged and a new tag is created by the bot, the pipeline to build and push image starts._

.github/ISSUE_TEMPLATE/minor-release.md

@@ -9,3 +9,9 @@ labels: "bot, priority/critical-urgent"
 Hey, Kebechet!
 
 Create a new minor release, please.
+
+**IMPORTANT NOTES**
+
+- _If [Khebut GitHub App Bot](https://github.com/apps/khebhut) is installed, this issue will trigger a minor release. The bot will open a Pull Request to update the CHANGELOG, fix the opened issue and create a tag._
+
+- _Only users that are allowed to release (a.k.a. maintainers specified in the .thoth.yaml file) can open the issue, otherwise bot will reject them, commenting and closing the issue. If [AICoE CI GitHub App](https://github.com/apps/aicoe-ci) is installed, once the pull request is merged and a new tag is created by the bot, the pipeline to build and push image starts._

.github/ISSUE_TEMPLATE/patch-release.md

@@ -9,3 +9,9 @@ labels: "bot, priority/critical-urgent"
 Hey, Kebechet!
 
 Create a new patch release, please.
+
+**IMPORTANT NOTES**
+
+- _If [Khebut GitHub App Bot](https://github.com/apps/khebhut) is installed, this issue will trigger a patch release. The bot will open a Pull Request to update the CHANGELOG, fix the opened issue and create a tag._
+
+- _Only users that are allowed to release (a.k.a. maintainers specified in the .thoth.yaml file) can open the issue, otherwise bot will reject them, commenting and closing the issue. If [AICoE CI GitHub App](https://github.com/apps/aicoe-ci) is installed, once the pull request is merged and a new tag is created by the bot, the pipeline to build and push image starts._

.github/ISSUE_TEMPLATE/redeliver_container_image.md

@@ -11,3 +11,8 @@ Hey, AICoE-CI!
 Please build and deliver the following git tag:
 
 Tag: x.y.z
+
+
+**IMPORTANT NOTES**
+
+- _If the tag exists and [AICoE CI GitHub App](https://github.com/apps/aicoe-ci) is installed, this issue will retrigger the pipeline to build from tag and push image container image. It should be used if the pipeline triggered with the {major|minor|patch} release failed for any reason._