Update issue templates to clarify properties file URL description

Author: SableRaf

.github/ISSUE_TEMPLATE/1_new-library.yml

@@ -17,7 +17,7 @@ body:
     id: properties_url
     attributes:
       label: Properties File URL
-      description: URL of your `library.properties` file.
+      description: URL of your properties `.txt` file (e.g. `myLibrary.txt`). It should be in your published release artifacts.
       placeholder: https://
     validations:
       required: true

.github/ISSUE_TEMPLATE/2_new-tool.yml

@@ -17,7 +17,7 @@ body:
     id: properties_url
     attributes:
       label: Properties File URL
-      description: URL of your `tool.properties` file.
+      description: URL of your properties `.txt` file (e.g. `myTool.txt`). It should be in your published release artifacts.
       placeholder: https://
     validations:
       required: true

.github/ISSUE_TEMPLATE/3_new-mode.yml

@@ -17,7 +17,7 @@ body:
     id: properties_url
     attributes:
       label: Properties File URL
-      description: URL of your `mode.properties` file.
+      description: URL of your properties `.txt` file (e.g. `myMode.txt`). It should be in your published release artifacts.
       placeholder: https://
     validations:
       required: true

.github/ISSUE_TEMPLATE/4_new-examples.yml

@@ -17,7 +17,7 @@ body:
     id: properties_url
     attributes:
       label: Properties File URL
-      description: URL of your `examples.properties` file.
+      description: URL of your properties `.txt` file (e.g. `myExamples.txt`). It should be in your published release artifacts.
       placeholder: https://
     validations:
       required: true