doc: move h2 scripts to install note

Author: Viyerelu23333

_docs/developer/getting_started/vm_install_using_vagrant.md

@@ -206,8 +206,7 @@ instructions.
    vagrant up
    ```
 
-   On PowerShell, you will have to set the environment variable in a
-   different way:
+   On PowerShell, you will have to set the environment variable differently:
 
    ```pwsh
    $Env:NO_SUBMISSIONS=1
@@ -245,7 +244,7 @@ instructions.
    * From a web browser (Chrome, Firefox, IE, etc.) on your host
      computer, go to:
 
-     <https://localhost:1511/index.php>
+     <http://localhost:1511/index.php>
 
      (see the VM login & password info below)
 
@@ -326,7 +325,7 @@ instructions.
 
 
 1. When you take a break from Submitty development work, you can
-   suspend the Submitty VM to to save resources (CPU and battery) on
+   suspend the Submitty VM to save resources (CPU and battery) on
    your host machine.
 
    ```
@@ -464,3 +463,20 @@ instructions.
    This has been tested with Blink for iOS and Termius for iOS (also available on Android, untested).
 
 6. Navigate to `localhost:1511` on the remote device.
+
+---
+
+## Developing in HTTPS
+
+For *developers* who need to upgrade to HTTP/2 in their development environments,
+please follow the step below:
+
+- Run `bash .setup/dev-upgrade-h2.sh up`.
+
+   After a successful execution, please use `https://` instead of `http://`.
+
+- To downgrade to HTTP/1.1, run `bash .setup/dev-upgrade-h2.sh down`.
+
+The script should automatically handle the upgrading and issuing a self-signed
+certificate.  If your browser complains about the security, please head to
+[WebSocket](/developer/developing_the_php_site/websocket).

_docs/sysadmin/installation/system_customization.md

@@ -316,3 +316,7 @@ You can customize the login screen with markdown. By default, `# Login` is rende
 
 Refer to [this](/student/communication/markdown) to learn more about markdown.
 
+
+## Changing the multi-processing module of Apache2, Enabling HTTP2
+
+Please refer to [this sysadmin action](/sysadmin/version_notes/v23.02.XX.md) page.

_docs/sysadmin/installation/version_notes/v22.10.XX.md _docs/sysadmin/installation/version_notes/v23.02.XX.md

@@ -1,17 +1,19 @@
 ---
-title:  v22.10.XX > Apache2 HTTP/2 Support
+title:  v23.02.XX > Apache2 HTTP/2 Support
 category: System Administrator > Installation Version Notes
 redirect_from:
-  - /system_admin/version_notes/v22.10.XX
+  - /system_admin/version_notes/v23.02.XX
 ---
 
-Release [v22.10.XX](https://github.com/Submitty/Submitty/releases/v22.10.XX)
+Release [v23.02.XX](https://github.com/Submitty/Submitty/releases/v23.02.XX)
 includes a sysadmin update to the Apache2 server's module and configuration:
 
 - Module `php7.4`[^PHP] and `mpm_prefork` should be disabled;
 
 - Module `mpm_event` and `http2` should be enabled;
 
+   `http2` requires `mpm_event`.
+
 - TLS could be enabled in the development environment to test HTTP/2 related
   functions.
 
@@ -45,7 +47,7 @@ Please follow these steps to upgrade the Apache2 server:
 
 ---
 
-If you need to downgrade the HTTP/2 to HTTP/1.1 and re-enable `mpm_prefork`, 
+If you need to downgrade the HTTP/2 to HTTP/1.1 and re-enable `mpm_prefork`,
 please follow the steps below:
 
 1. Disable `http2` and `mpm_event` by `a2dismod http2 mpm_event`;
@@ -57,17 +59,4 @@ please follow the steps below:
 
 ---
 
-For developers who need to upgrade to HTTP/2 in their development environments,
-please follow the step below:
-
-1. Run `bash .setup/dev-upgrade-h2.sh up`.
-
-For downgrading to HTTP/1.1, run `bash .setup/dev-upgrade-h2.sh down`
-
-The script should automatically handle the upgrading and issuing a self-signed
-certificate.  If your browser complains about the security, please head to
-[WebSocket](/developer/developing_the_php_site/websocket).
-
----
-
 [^PHP]: Change the PHP version to the deployed version if needed.

navtreedata.js

@@ -144,7 +144,7 @@ var NAVTREE =
                 [ "Update Submitty", "/sysadmin/installation/update", null ],
                 [ "Version Notes", "/sysadmin/installation/version_notes/index", [
                     [ "Overview", "/sysadmin/installation/version_notes/index", null],
-                    [ "v22.10.XX", "/sysadmin/installation/version_notes/v22.10.XX", null ],
+                    [ "v23.02.XX", "/sysadmin/installation/version_notes/v23.02.XX", null ],
                     [ "v22.06.00", "/sysadmin/installation/version_notes/v22.06.00", null ],
                     [ "v22.05.00", "/sysadmin/installation/version_notes/v22.05.00", null ],
                     [ "v22.03.00", "/sysadmin/installation/version_notes/v22.03.00", null ],