Cleaned up Pull Request Template

* Removed HTML break tags.
* Added blank line to end of Issue Template.

.github/ISSUE_TEMPLATE.md

@@ -19,4 +19,4 @@ Which mode does your server use: Pre-Renewal or Renewal?
 
 * **Modifications that may affect results**: 
   * Please provide any information that could influence the expected result.
-  * This can be either configurations you changed, database values you changed, or even external source modifications.
+  * This can be either configurations you changed, database values you changed, or even external source modifications.

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,12 +1,12 @@
 * **Addressed Issue(s)**: 
-<br />
+
 Please specify the rAthena [GitHub issue(s)](https://help.github.com/articles/autolinked-references-and-urls/#issues-and-pull-requests) this pull request amends.
 If no issue exists yet, please [create one](https://github.com/rathena/rathena/issues/new) first and then link your pull request to the amendment!
 
 * **Server Mode**: 
-<br />
+
 Which mode does this pull request apply to: Pre-Renewal, Renewal, or Both?
 
 * **Description of Pull Request**: 
-<br />
+
 Describe how this pull request will resolve the issue(s) listed above.