docs: fix outdated references (#480)

* Update .env.example

* Update README.md

* Update bing_jailbreak_info.md

* Update heroku.md

* Update SECURITY.md

* Update CONTRIBUTING.md

* Update CODE_OF_CONDUCT.md

* Update LICENSE.md

* Update SECURITY.md

* Update coding_conventions.md

* Update documentation_guidelines.md

* Update testing.md

* Update heroku.md

* Update google_search.md

* Update introduction.md

* Update make_your_own.md

* Update stable_diffusion.md

* Update wolfram.md

* Update proxy.md

* Update user_auth_system.md

* Update bing_jailbreak_info.md

* Update multilingual_information.md

* Update project_origin.md

* Update tech_stack.md

* Update apis_and_tokens.md

* Update docker_install.md

* Update linux_install.md

* Update mac_install.md

* Update windows_install.md

* Update install.js

docs/contributions/coding_conventions.md

@@ -79,6 +79,7 @@ Defines Mongoose models to represent data entities and their relationships.
 - Use descriptive test case and function names to clearly express the test's purpose.
 - Document the code using JSDoc comments to provide clear explanations of functions, parameters, and return types. (WIP)
 
+---
 
 ## React Client
 
@@ -102,6 +103,6 @@ Use the conventions found in the `data-provider` directory for handling data ser
 
 Use [Recoil](https://recoiljs.org/) for state management, but *DO NOT pollute the global state with unnecessary data*. Instead, use local state or props for data that is only used within a component or passed down from parent to child.
   
-##
+---
 
-## [Go Back to ReadMe](../../README.md)
+## [Go Back to ReadMe](../../README.md)