Fix couple of code blocks, doc paths in docgen templates.
* Replace ```shell with ```sh to fix jekyll build errors
* Fix paths in docgen templates for new docs site directory structure.
* Add jekyll build output directories to gitignore.
RELNOTES: None
PiperOrigin-RevId: 159020213
diff --git a/site/docs/tutorial/cpp.md b/site/docs/tutorial/cpp.md
index dbf90f5..e0a5e70 100644
--- a/site/docs/tutorial/cpp.md
+++ b/site/docs/tutorial/cpp.md
@@ -152,7 +152,7 @@
Now test your freshly built binary:
-```shell
+```sh
bazel-bin/main/hello-world
```
