Fix open issue on Windows

Author: Taaku18

README.md

@@ -143,10 +143,10 @@ Become a sponsor on [Patreon](https://patreon.com/kyber).
 
 Modmail supports the use of third-party plugins to extend or add functionalities to the bot. This allows niche features as well as anything else outside of the scope of the core functionality of Modmail. A list of third-party plugins can be found using the `plugins registry` command. To develop your own, check out the [plugins documentation](https://github.com/kyb3r/modmail/wiki/Plugins).
 
-Plugins requests and support is available in our (Modmail Plugins Server)[https://discord.gg/4JE4XSW].
+Plugins requests and support is available in our [Modmail Plugins Server](https://discord.gg/4JE4XSW).
 
 ## Contributing
 
 Contributions to Modmail are always welcome, whether it be improvements to the documentation or new functionality, please feel free to make the change. Check out our contribution [guidelines](https://github.com/kyb3r/modmail/blob/master/CONTRIBUTING.md) before you get started.
 
-If you like this project and would like to show your appreciation, support us on **[Patreon](https://www.patreon.com/kyber)**!
+If you like this project and would like to show your appreciation, support us on **[Patreon](https://www.patreon.com/kyber)**!

core/config.py

@@ -153,7 +153,7 @@ def populate_cache(self) -> dict:
         config_help_json = os.path.join(
             os.path.dirname(os.path.abspath(__file__)), "config_help.json"
         )
-        with open(config_help_json, "r") as f:
+        with open(config_help_json, "r", encoding="utf-8") as f:
             self.config_help = dict(sorted(json.load(f).items()))
 
         return self._cache