Merge pull request #3457 from arturcic/bug/2665

#2665 - fix issues templates

Author: arturcic

.github/ISSUE_TEMPLATE/documentation.md

@@ -1,6 +1,6 @@
 ---
 name: Documentation
-about: Describe this issue template's purpose here.
+about: Describe the missing/wrong information in the documentation.
 title: "[Docs]"
 labels: documentation
 assignees: ''

.github/ISSUE_TEMPLATE/failing-test.md

@@ -1,6 +1,6 @@
 ---
 name: Failing test
-about: Describe this issue template's purpose here.
+about: Describe the scenario you have as a unit test.
 title: "[Failing test]"
 labels: failing test case
 assignees: ''

.github/ISSUE_TEMPLATE/improvement-request.md

@@ -1,6 +1,6 @@
 ---
 name: Improvement request
-about: Describe this issue template's purpose here.
+about: Describe the change you want to request.
 title: "[Improvement]"
 labels: improvement
 assignees: ''