Docs refactoring

Author: ZhukMax

README.md

@@ -125,7 +125,7 @@ EFx renders into any runtime that provides `&mut egui::Ui`. We officially build
 ```toml
 # Cargo.toml
 [dependencies]
-efx    = "0.6"
+efx    = "0.7"
 eframe = "0.32"
 ```
 
@@ -143,7 +143,7 @@ egui::CentralPanel::default().show(ctx, |ui| {
 ```toml
 # Cargo.toml
 [dependencies]
-efx       = "0.6"
+efx       = "0.7"
 bevy      = "0.16"
 bevy_egui = "0.36"  # re-exports `egui`
 ```
@@ -164,7 +164,7 @@ bevy_egui::egui::Window::new("EFx").show(egui_ctx.ctx_mut(), |ui| {
 ```toml
 # Cargo.toml
 [dependencies]
-efx        = "0.6"
+efx        = "0.7"
 egui       = "0.32"
 egui-winit = "0.32"
 egui-wgpu  = "0.32"

efx/docs/intro.md

@@ -17,8 +17,15 @@ efx!(Ui::default(), r#"
     </Column>
 "#);
 ```
-**Key Features 0.5**
-- Tags: `Column`, `Row`, `Label`, `Separator`, `Button`.
+**Key Features 0.7**
+- Tags: 
+  - `Column`
+  - `Row`
+  - `Label`
+  - `Separator`
+  - `Button`
+  - `Window`
+  - `Grid` and `GridBreak`
 - Insert expressions: `{expr}` within text.
 - Escaping: `{{` → `{`, `}}` → `}`.
 - Tag attributes are **parsed**.