fix: mkdocs Web after chore PR (#747)

Author: DeaMariaLeon

docs/_templates/autosummary/base.rst

@@ -34,7 +34,7 @@ dimensions.
   { .card }
 
   ![Sparse](./assets/images/repair-fix-repairing-icon.png){width=10%, align=left}
-  <a href="api/BACKEND/" style: class="card">API</a>
+  <a href="api/" style: class="card">API</a>
   { .card }
 
  ![Sparse](./assets/images/group-discussion-icon.png){width=10%, align=left}

docs/_templates/autosummary/class.rst

@@ -267,7 +267,7 @@ memory than an equivalent desne array, set the environment variable
 [`sparse.COO`][] and [`sparse.GCXS`][] arrays support a number of other common operations. Among them are
 [`sparse.dot`][], [`sparse.tensordot`][] [`sparse.einsum`][], [`sparse.concatenate`][]
 and [`sparse.stack`][], [`sparse.COO.transpose`][] and [`sparse.COO.reshape`][].
-You can view the full list on the [API reference page](../../api/BACKEND/).
+You can view the full list on the [API reference page](../../api/).
 
 !!! note
 

docs/_templates/autosummary/module.rst

@@ -64,4 +64,4 @@ y = s.todense() + 5
 ```
 
 For more operations see the [operations][operators]
-or the [API reference page](../../api/backend).
+or the [API reference page](../../api/).

docs/api.md

@@ -92,6 +92,7 @@ nav:
     - construct.md
     - operations.md
   - API:
+    - api.md
     - api/*
   - Contributing:
     - contributing.md