Update configuration files (#6)

* Update pull_request_template.md

* Update README.md

Author: Mashiro

.github/pull_request_template.md

@@ -1,7 +1,7 @@
 ### Prerequisites
 *Issues must meet the following criteria:*
 
- - [ ] No similar [pull request](https://github.com/KatsuteDev/simplehttpserver/pulls) exists.
+ - [ ] No similar pull request exists.
  - [ ] Code follows the general code style of this project.
  - [ ] No sensitive information is exposed.
  - [ ] Relevant comments have been added.

README.md

@@ -42,7 +42,8 @@
 
 <!-- GitHub Copilot Disclaimer -->
 <table>
-    <img alt="GitHub Copilot" align="left" src="https://raw.githubusercontent.com/KatsuteDev/.github/main/profile/copilot-dark.png#gh-dark-mode-only" width="50"><img alt="GitHub Copilot" align="left" src="https://raw.githubusercontent.com/KatsuteDev/.github/main/profile/copilot-light.png#gh-light-mode-only" width="50">
+    <img alt="GitHub Copilot" align="left" src="https://raw.githubusercontent.com/KatsuteDev/.github/main/profile/copilot-dark.png#gh-dark-mode-only" width="50">
+    <img alt="GitHub Copilot" align="left" src="https://raw.githubusercontent.com/KatsuteDev/.github/main/profile/copilot-light.png#gh-light-mode-only" width="50">
     <p>GitHub Copilot is <b>strictly prohibited</b> on this repository.<br>Pulls using this will be rejected.</p>
 </table>
 <!-- GitHub Copilot Disclaimer -->