Adjust heading levels in docs (#7163)

This PR adjusts the heading levels in the docs, as some of them weren't
following the right hierarchy.

I also formatted all of the docs with Prettier.

Release Notes:

- N/A

docs/src/languages/elixir.md

@@ -20,12 +20,12 @@ brew install elixir-ls
 3. Restart Zed
 
 {% hint style="warning" %}
-If `elixir-ls` is not running in an elixir project, check the error log via the command palette action `zed: open log`.  If you find an error message mentioning: `invalid LSP message header "Shall I install Hex? (if running non-interactively, use \"mix local.hex --force\") [Yn]`, you might need to install [`Hex`](https://hex.pm). You run `elixir-ls` from the command line and accept the prompt to install `Hex`.
+If `elixir-ls` is not running in an elixir project, check the error log via the command palette action `zed: open log`. If you find an error message mentioning: `invalid LSP message header "Shall I install Hex? (if running non-interactively, use \"mix local.hex --force\") [Yn]`, you might need to install [`Hex`](https://hex.pm). You run `elixir-ls` from the command line and accept the prompt to install `Hex`.
 {% endhint %}
 
 ### Formatting with Mix
 
-If you prefer to format your code with [Mix](https://hexdocs.pm/mix/Mix.html), use the following snippet in your `settings.json` file to configure it as an external formatter.  Formatting will occur on file save.
+If you prefer to format your code with [Mix](https://hexdocs.pm/mix/Mix.html), use the following snippet in your `settings.json` file to configure it as an external formatter. Formatting will occur on file save.
 
 ```json
 {

docs/src/languages/python.md

@@ -17,8 +17,8 @@ By default, the Pyright language server will look for Python packages in the def
 
 To do this, create a JSON file called `pyrightconfig.json` at the root of your project. This file must include two keys:
 
-* `venvPath`: a relative path from your project directory to any directory that _contains_ one or more virtual environment directories
-* `venv`: the name of a virtual environment directory
+- `venvPath`: a relative path from your project directory to any directory that _contains_ one or more virtual environment directories
+- `venv`: the name of a virtual environment directory
 
 For example, a common approach is to create a virtual environment directory called `.venv` at the root of your project directory with the following commands:
 
@@ -40,7 +40,7 @@ Having done that, you would create a `pyrightconfig.json` with the following con
 
 ### Code formatting
 
-The Pyright language server does not provide code formatting. If you want to automatically reformat your Python code when saving, you'll need to specify an _external_code formatter in your settings. See the [configuration](../configuration/configuring-zed.md) documentation for more information.
+The Pyright language server does not provide code formatting. If you want to automatically reformat your Python code when saving, you'll need to specify an \_external_code formatter in your settings. See the [configuration](../configuration/configuring-zed.md) documentation for more information.
 
 A common tool for formatting python code is [Black](https://black.readthedocs.io/en/stable/). If you have Black installed globally, you can use it to format Python files by adding the following to your `settings.json`:
 

docs/src/languages/ruby.md

@@ -23,14 +23,14 @@ Solargraph has formatting and diagnostics disabled by default. We can tell Zed t
 
 ```json
 {
-   "lsp": {
-      "solargraph": {
-         "initialization_options": {
-            "diagnostics": true,
-            "formatting": true
-         }
+  "lsp": {
+    "solargraph": {
+      "initialization_options": {
+        "diagnostics": true,
+        "formatting": true
       }
-   }
+    }
+  }
 }
 ```
 

docs/src/languages/toml.md

@@ -1,5 +1,4 @@
 # TOML
 
-
 - Tree Sitter: [tree-sitter-toml](https://github.com/tree-sitter/tree-sitter-toml)
 - Language Server: [taplo](https://taplo.tamasfe.dev)