created doc for why2_list_push_at

docs/functions/core/llist/why2_list_push_at.md

@@ -0,0 +1,42 @@
+<!--
+This is part of WHY2
+Copyright (C) 2022 Václav Šmejkal
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>.
+-->
+
+# why2_list_push_at
+
+## Parameters
+
+| Identifier | Data type                                                   |
+| ---------- | ----------------------------------------------------------- |
+| `list`     | [`why2_list_t *`](../../../../types/core/llist/why2_list_t) |
+| `index`    | `unsigned long`                                             |
+| `value`    | `void *`                                                    |
+| `size`     | `unsigned long`                                             |
+
+## Attributes
+
+|                     |                                                                       |
+| ------------------  | --------------------------------------------------------------------- |
+| **Return type**     | `void`                                                                |
+| **Header comment**  | `PUSH ELEMENT TO INDEX index of LIST`                                 |
+| **Added in commit** | [`0e246be627c33f33d82a0fb2e5b43dd3fa024e0c`](https://github.com/ENGO150/WHY2/commit/0e246be627c33f33d82a0fb2e5b43dd3fa024e0c) |
+
+## Description
+
+Function appends new node containing `value` of `size` to the `index` position of linked-list (`list`).
+
+`index` starts with 0.

docs/functions/index.md

@@ -77,6 +77,7 @@ You can find documentation for every *public* function of WHY2 below.
 | Function                                              | Description                         |
 | ----------------------------------------------------- | ----------------------------------- |
 | [`why2_list_push`](./core/llist/why2_list_push)       | Push element to list back           |
+| [`why2_list_push_at`](./core/llist/why2_list_push_at) | Push element to index index of list |
 
 ## Logger