Apply suggestions from code review

Co-authored-by: Pierre <turbo@github.com>

Author: aibaars

.github/ISSUE_TEMPLATE/ql--false-positive.md

@@ -1,6 +1,6 @@
 ---
-name: False positive
-about: Tell us about an alert that shouldn't be reported
+name: CodeQL False positive
+about: Report CodeQL alerts that you think should not have been detected (not applicable, not exploitable, etc.)
 title: False positive
 labels: false-positive
 assignees: ''
@@ -26,7 +26,7 @@ function execSh(command, options) {
 ```
 -->
 
-**URL to the alert on GitHub CodeScanning (optional)**
+**URL to the alert on GitHub code scanning (optional)**
 
 <!--
 1. Open the project on GitHub.com.