Updated pull rqeuest text.

.github/pull_request_template.md

@@ -1,8 +1,18 @@
+Thank you for contributing your time to the Mosquitto project!
+
+Before you go any further, please note that we cannot accept contributions if
+you haven't signed the [Eclipse Contributor Agreement](https://www.eclipse.org/legal/ECA.php).
+If you aren't able to do that, or just don't want to, please describe your bug
+fix/feature change in an issue. For simple bug fixes it is can be just as easy
+for us to be told about the problem and then go fix it directly.
+
+Then please check the following list of things we ask for in your pull request:
+
+- [ ] Have you signed the [Eclipse Contributor Agreement](https://www.eclipse.org/legal/ECA.php), using the same email address as you used in your commits?
+- [ ] Do each of your commits have a "Signed-off-by" line, with the correct email address? Use "git commit -s" to generate this line for you.
 - [ ] If you are contributing a new feature, is your work based off the develop branch?
 - [ ] If you are contributing a bugfix, is your work based off the fixes branch?
 - [ ] Have you added an explanation of what your changes do and why you'd like us to include them?
 - [ ] Have you successfully run `make test` with your changes locally?
-- [ ] Have you signed the [Eclipse Contributor Agreement](https://www.eclipse.org/legal/ECA.php), using the same email address as you used in your commits?
-- [ ] Do each of your commits have a "Signed-off-by" line, with the correct email address? Use "git commit -s" to generate this line for you.
 
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