Update footnotes in new issue template

Author: jmikola

.github/ISSUE_TEMPLATE/bug-report.md

@@ -57,11 +57,11 @@ reproduce the issue. Clarify whether this script can be run from the CLI or if
 it can must be run through a web SAPI.
 
 If the error only presents itself in a web SAPI, note whether the issue can be
-reproduced with PHP's built-in web server[^1]. If not, please share your web
+reproduced with PHP's built-in web server[^3]. If not, please share your web
 server version and any relevant configuration details in the Environment section
 above.
 
-[^1]: http://php.net/manual/en/features.commandline.webserver.php
+[^3]: http://php.net/manual/en/features.commandline.webserver.php
 -->
 
 ### Expected and Actual Behavior
@@ -72,17 +72,17 @@ and/or `var_dump()` output if that helps explain the error.
 
 If the observed behavior is an unexpected exception, please include its full
 message and any relevant backtrace information. If you encountered a
-segmentation fault, please include a GDB backtrace[^3].
+segmentation fault, please include a GDB backtrace[^4].
 
-[^2]: https://bugs.php.net/bugs-generating-backtrace.php
+[^4]: https://bugs.php.net/bugs-generating-backtrace.php
 -->
 
 ### Debug Log
 
 <!--
 If the issue relates to internal driver behavior (e.g. connection issues),
-please include a debug log[^3]. This may be generated by setting the
+please include a debug log[^5]. This may be generated by setting the
 `mongodb.debug` INI option to "stderr" or a directory (useful for web SAPIs).
 
-[^3]: https://www.php.net/manual/en/mongodb.configuration.php#ini.mongodb.debug
+[^5]: https://www.php.net/manual/en/mongodb.configuration.php#ini.mongodb.debug
 -->