docs: clarify how to open SourceMeta Studio panel (#135)

Closes #65
Signed-off-by: EncrypterParv <parvgoyal1321@gmail.com>

Author: EncrypterParv

Makefile

@@ -19,6 +19,7 @@ vscode: .always
 	cd vscode && $(NPM) run build
 	$(INSTALL) -m 0664 README.markdown build/vscode/README.md
 	$(INSTALL) -m 0664 screenshot.png build/vscode/screenshot.png
+	$(INSTALL) -m 0664 instructions.png build/vscode/instructions.png
 	$(INSTALL) -m 0664 LICENSE build/vscode/LICENSE
 	$(INSTALL) -m 0664 build/webview/index.html build/vscode/index.html
 	$(INSTALL) -m 0664 vscode/logo.png build/vscode/logo.png

README.markdown

@@ -12,6 +12,10 @@ validation, and automatic formatting directly into your editor.
 
 ![Sourcemeta Studio Example](./screenshot.png)
 
+After installing the Sourcemeta Studio extension, issues are not displayed automatically when you open a JSON or YAML file. To view them, open the file and click the Sourcemeta Studio icon in the editor title bar to manually open the Sourcemeta Studio panel for the active file.
+
+![Sourcemeta Studio Instructions](./instructions.png)
+
 > [!TIP]
 > Do you want to level up your JSON Schema skills? Check out
 > [learnjsonschema.com](https://www.learnjsonschema.com), our growing JSON