misc: Follow more of AL's guidelines.

.gitattributes

@@ -0,0 +1,7 @@
+# Normalize line endings for all files that Git considers text files.
+* text=auto eol=lf
+
+# Only include the addons folder when downloading from the Asset Library.
+/**        export-ignore
+/addons    !export-ignore
+/addons/** !export-ignore

.gitignore

@@ -14,5 +14,5 @@ main.tscn
 library.xml
 
 # Keep the addon icon
-!addons/godot_xml/icon.svg
-!addons/godot_xml/icon.png
+!assets/icon.svg
+!assets/icon.png

addons/godot_xml/LICENSE

@@ -0,0 +1,18 @@
+Copyright 2023-present elenakrittik
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

addons/godot_xml/README.md

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+# GodotXML - advanced XML support for Godot 4.
+
+This addon adds support for manipulating XML data in Godot 4 with ease.
+
+> Supports Godot 4.0, 4.1 and the likely the upcoming 4.2.
+
+> HINT: Migrating from v1? See [changelog](./CHANGELOG.md) for a complete list of breaking (and not) changes.
+
+## Features
+
+- Pure-Godot - everything is done using built-in `XMLParser` and does not rely on external bindings*;
+- Loading and dumping XML data into/from a convenient class-based format;
+- Beautifying XML;
+- Converting XML into dictionaries;
+- Access uniquely named children of nodes as if they were regular attributes (works in the editor too!);
+- Decent error messages for when the input is malformed*.
+
+<details>
+  <summary>*Future plans</summary>
+
+  `XMLParser`, Godot's native, low-level XML parser that this addon works on top of, or, more specifically,
+  `irrXML` (on which `XMLParser` is based), always assumes input to be trusted and valid, and therefore lacks both
+  adequate error handling and adequate security measures. In case of error handling addon currently
+  implements a few workarounds that eliminate *known* godot bugs, but still cannot handle syntactically invalid
+  input; in case of security we can't do anything unfortunately. Due to the above and our intention for this
+  plugin to be usable in as much cases as possible, this addon will soon migrate to a custom, more modern XML
+  library like Expat.
+
+  Related issues on Godot's tracker:
+  - https://github.com/godotengine/godot/issues/72517
+  - https://github.com/godotengine/godot/issues/51380
+  - https://github.com/godotengine/godot/issues/81896
+  - https://github.com/godotengine/godot/issues/51622
+  - https://github.com/godotengine/godot/issues/81896#issuecomment-1731320027
+
+</details>
+
+## Installation
+
+Search for the "GodotXML" addon on the asset library ([link](https://godotengine.org/asset-library/asset/1684)) or alternatively copy the `addons/` folder into your project's root.
+
+## API
+
+All functions and attributes that are meant for use by you do not have `_` before their name
+and are also listed before any internal function.
+
+All other functions and attributes are **not meant** to be used by you, though of course
+you can edit them as you like.
+
+## Roadmap
+
+- [ ] Setup automated tests.