(2.0.0) woohoo, first major version bump!

bunch of stuff this update, including a full documentation site (still a WIP)
there is now a cache created whenever an instance of `FloweryAPI` is instantiated, so you don't have to query the api and iterate through the api response to retrieve a single voice anymore!
function names have also been changed with this update, hence the major version bump. `get_tts()`, `get_voices()`, and `get_voice()` have been renamed to `fetch_tts()`, `fetch_voices()`, and `fetch_voice()` respectively. `get_voices()` still exists, but with different functionality (that method retrieves voices from the internal cache instead of querying the flowery api)

!BREAKING

docs/getting-started/installation.md

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+# Installation
+
+This section will guide you through the installation process of PyFlowery.
+
+## pip
+
+You can use pip to install PyFlowery.  
+The command to use differs slightly depending on what operating system you use.
+
+On Windows:
+
+``` prolog title="Command Prompt"
+py -m pip install pyflowery
+```
+
+On macOS and Linux:
+
+``` prolog title="Bash"
+python3 -m pip install pyflowery
+```
+
+## Poetry
+
+You can also use [Poetry](https://python-poetry.org/) to store your dependencies.  
+Use the following command to install PyFlowery:
+
+``` prolog title="Command Prompt / Shell"
+poetry add pyflowery
+```

docs/index.md

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+# Welcome to PyFlowery
+
+/// admonition | This project is in active development
+    type: warning
+These docs are not complete yet, and there is a lot still to do.
+///
+
+**PyFlowery** is a Python API Wrapper for the [Flowery](https://flowery.pw/about) API.
+
+Check out the [usage](getting-started/usage.md) section for further information.  
+Installation instructions can be found [here](getting-started/installation.md).

docs/ref/exceptions.md

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+# Exceptions
+
+::: pyflowery.exceptions

docs/ref/flowery.md

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+# FloweryAPI
+
+::: pyflowery.pyflowery

docs/ref/models.md

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+# Models Reference
+
+::: pyflowery.models

docs/ref/rest_adapter.md

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+# Rest Adapter
+
+/// admonition | Internal Functions
+    type: warning
+These functions are meant for use in other parts of the module. You *probably* shouldn't be calling these manually.  
+If there's an endpoint method missing from the main [FloweryAPI](flowery.md) class, you should open an [issue](https://www.coastalcommits.com/cswimr/PyFlowery/issues) (or a [pull request](https://www.coastalcommits.com/cswimr/PyFlowery/pulls)).
+///
+
+::: pyflowery.rest_adapter