Adds warnings and links to hook lists

dev/documentation/3.3/en/utilities-hooks.md

@@ -1,6 +1,7 @@
 ---
 book: dev-documentation
 version: 3.3
+showPageTOC: true
 title: Hooks - Technical Documentation - OJS|OMP|OPS 3.3
 ---
 
@@ -102,7 +103,7 @@ Hooks are most commonly used in generic plugins. Calling hooks from other types
 
 The following is a list of the most common hooks that can be used.
 
-> This is an incomplete list. Search the application code for `HookRegistry::call` to get a complete list.
+> This is an incomplete list. Search the [application code](https://github.com/pkp/ojs/tree/stable-3_3_0) for `HookRegistry::call` to get a complete list of hooks available in OJS 3.3.
 {:.warning}
 
 ### Request, Routing and Templating

dev/documentation/en/utilities-hooks.md

@@ -1,6 +1,7 @@
 ---
 book: dev-documentation
 version: 3.4
+showPageTOC: true
 title: Hooks - Technical Documentation - OJS|OMP|OPS
 ---
 
@@ -106,7 +107,7 @@ Hooks are most commonly used in generic plugins. Calling hooks from other types
 
 ## Common Hooks
 
-The following is a list of the most common hooks that can be used. Find all of the hooks in the application by searching for `Hook::call` in the code.
+> This is an incomplete list. Search the [application code](https://github.com/pkp/ojs) for `HookRegistry::call` to get a complete list of hooks available in OJS 3.4.
 {:.warning}
 
 ### Request, Routing and Templating

ojs-2-technical-reference/en/hook_list.md

@@ -1,9 +1,15 @@
 # Hook List
 
+> This hook list is out of date. Some hooks may not work with newer versions of OJS. Please consult [v3.3 Common Hooks](/dev/documentation/3.3/en/utilities-hooks#common-hooks) and [v3.4 Common Hooks](/dev/documentation/en/utilities-hooks#common-hooks) for currently supported hooks. 
+{:.warning}
+
 The following list describes all the hooks built into OJS as of release 2.1. Ampersands before variable names (e.g. ``&$sourceFile``) indicate that the parameter has been passed to the hook callback in the parameters array by reference and can be modified by the hook callback. The effect of the hook callback's return value is specified where applicable; in addition to this, the hook callback return value will always determine whether or not further callbacks registered on the same hook will be skipped.
 
 **Table 5.2. Hook List**
 
+> This hook list is out of date. Some hooks may not work with newer versions of OJS. Please consult [v3.3 Common Hooks](/dev/documentation/3.3/en/utilities-hooks#common-hooks) and [v3.4 Common Hooks](/dev/documentation/en/utilities-hooks#common-hooks) for currently supported hooks. 
+{:.warning}
+
 | Name | Parameters | Description |
 | ----- | ----- | ----- |
 | `LoadHandler` | `&$page`, `&$op`, `&$sourceFile` | Called by OJS's main `index.php`{.filename} script after the page (`&$page`), operation (`&$op`), and handler code file (`&$sourceFile`) names have been determined, but before `$sourceFile` is loaded. Can be used to intercept browser requests for handling by the plugin. Returning `true` from the callback will prevent OJS from loading the handler stub in `$sourceFile`.