feat(docs): add pages for webpack tutorial

docs/src/SUMMARY.md

@@ -9,6 +9,12 @@
   - [`pack` and `publish`](./commands/pack-and-publish.md)
 - [Tutorials](./tutorials/index.md)
   - [Hybrid applications with Webpack](./tutorials/hybrid-applications-with-webpack/index.md)
+    - [Getting started](./tutorials/hybrid-applications-with-webpack/getting-started.md)
+    - [Template deep dive](./tutorials/hybrid-applications-with-webpack/template-deep-dive/index.md)
+      - [`Cargo.toml`](./tutorials/hybrid-applications-with-webpack/template-deep-dive/cargo-toml.md)
+      - [`src/lib.rs`](./tutorials/hybrid-applications-with-webpack/template-deep-dive/src-lib-rs.md)
+    - [Building your project](./tutorials/hybrid-applications-with-webpack/template-deep-dive/building-your-project.md)
+    - [Using your library](./tutorials/hybrid-applications-with-webpack/using-your-library.md)
   - [npm browser packages](./tutorials/npm-browser-packages/index.md)
     - [Getting started](./tutorials/npm-browser-packages/getting-started.md)
       - [Project setup](./tutorials/npm-browser-packages/project-setup/index.md)