add docs

Signed-off-by: Aleksandar Stojanov <[email protected]>

README.md

@@ -95,9 +95,15 @@ usage: helm schema [-input STR] [-draft INT] [-output STR]
   -indent int
     	Indentation spaces (even number) (default 4)
   -input value
-    	Multiple yamlFiles as inputs (comma-separated)
+    	Multiple yaml files as inputs (comma-separated)
   -output string
     	Output file path (default "values.schema.json")
+  -schemaRoot.description string
+    	JSON schema description
+  -schemaRoot.id string
+    	JSON schema ID
+  -schemaRoot.title string
+    	JSON schema title
 ```
 
 ### Basic
@@ -207,6 +213,49 @@ Output will be something like this:
 }
 ```
 
+Adding ID, title and description to the schema:
+
+`basic.yaml`
+
+```yaml
+image:
+  repository: nginx
+  tag: latest
+  pullPolicy: Always
+```
+
+```bash
+$ helm schema -input basic.yaml -schemaRoot.id "https://example.com/schema" -schemaRoot.title "My schema" -schemaRoot.description "This is my schema"
+```
+
+Generated schema will be:
+
+```json
+{
+  "$id": "https://example.com/schema",
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "description": "This is my schema",
+  "properties": {
+      "image": {
+          "properties": {
+              "pullPolicy": {
+                  "type": "string"
+              },
+              "repository": {
+                  "type": "string"
+              },
+              "tag": {
+                  "type": "string"
+              }
+          },
+          "type": "object"
+      }
+  },
+  "title": "My schema",
+  "type": "object"
+}
+```
+
 ## Issues, Features, Feedback
 
 Your input matters. Feel free to open [issues](https://github.com/losisin/helm-values-schema-json/issues) for bugs, feature requests, or any feedback you may have. Check if a similar issue exists before creating a new one, and please use clear titles and explanations to help understand your point better. Your thoughts help me improve this project!