GitHub: Template tweaks

CONTRIBUTING.md: Correct misuse of "as such" (Grammar Police)

bug-report.md: Clarify that the submitter should always test against the
latest stable code base.
diff --git a/.github/CONTRIBUTING.md b/.github/CONTRIBUTING.md
index 6d39ae4..d554dd0 100644
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@@ -3,10 +3,10 @@
 
 libjpeg-turbo is a stable and mature product with a worldwide reach, it is an
 ISO/ITU-T reference implementation of the JPEG standard, and its maintainer
-does not earn a salary for maintaining it.  As such, not every code
-contribution can or will be accepted into the libjpeg-turbo code base.  In
-order to maximize the chances that a code contribution is acceptable, please
-adhere to the following guidelines:
+does not earn a salary for maintaining it.  Thus, not every code contribution
+can or will be accepted into the libjpeg-turbo code base.  In order to maximize
+the chances that a code contribution is acceptable, please adhere to the
+following guidelines:
 
 1. If the code contribution is a bug fix, then please ensure that enough
 information is provided so that the maintainer can readily reproduce and
diff --git a/.github/ISSUE_TEMPLATE/bug-report.md b/.github/ISSUE_TEMPLATE/bug-report.md
index 39db166..a2a5feb 100644
--- a/.github/ISSUE_TEMPLATE/bug-report.md
+++ b/.github/ISSUE_TEMPLATE/bug-report.md
@@ -31,7 +31,7 @@
 **Platform(s) (compiler version, operating system version, CPU) on which the bug was observed:**
 
 
-**libjpeg-turbo version(s) in which the bug was observed:**
+**libjpeg-turbo release(s), commit(s), or branch(es) in which the bug was observed (always test the tip of the master branch or the latest [stable pre-release](https://libjpeg-turbo.org/DeveloperInfo/PreReleases) to verify that the bug hasn't already been fixed):**
 
 
 **If the bug is a regression, the specific commit that introduced the regression (use `git bisect` to determine this):**