Add YAML LSP initialization_options (#17479)

Makes YAML language server configurable under `lsp.yaml-language-server`:
- Add support for `initialization_options` 
- Add support for custom `bin` specification

docs/src/languages/yaml.md

@@ -4,3 +4,58 @@ YAML support is available natively in Zed.
 
 - Tree Sitter: [zed-industries/tree-sitter-yaml](https://github.com/zed-industries/tree-sitter-yaml)
 - Language Server: [redhat-developer/yaml-language-server](https://github.com/redhat-developer/yaml-language-server)
+
+## Configuration
+
+You can configure various [yaml-language-server settings](https://github.com/redhat-developer/yaml-language-server?tab=readme-ov-file#language-server-settings) by adding them to your Zed settings.json in a `yaml-language-server` block under the `lsp` key. For example:
+
+```json
+  "lsp": {
+    "yaml-language-server": {
+      "initialization_options": {
+        "yaml": {
+          "keyOrdering": true,
+          "format": {
+            "singleQuote": true
+          },
+          "schemas": {
+              "http://json.schemastore.org/composer": ["/*"],
+              "../relative/path/schema.json": ["/config*.yaml"]
+          }
+        }
+      }
+    }
+  }
+```
+
+Note, settings keys must be nested, so `yaml.keyOrdering` becomes `{"yaml": { "keyOrdering": true }}`.
+
+## Schemas
+
+By default yaml-language-server will attempt to determine the correct schema for a given yaml file and retrieve the appropriate JSON Schema from [Json Schema Store].
+
+You can override this by [using an inlined schema] reference via a modeline comment at the top of your yaml file:
+
+```yaml
+# yaml-language-server: $schema=https://json.schemastore.org/github-action.json
+name: Issue Assignment
+on:
+  issues:
+    types: [oppened]
+```
+
+You can disable this functionality entirely if desired:
+
+```json
+  "lsp": {
+    "yaml-language-server": {
+      "initialization_options": {
+        "yaml": {
+          "schemaStore": {
+            "enable": false
+          }
+        }
+      }
+    }
+  }
+```