[update] Add Ecosystem section with BrainX installation instructions

chaoming0625 · chaoming0625 · commit d3029819519e · 2025-08-01T15:16:10.000+08:00
diff --git a/docs/index.rst b/docs/index.rst
@@ -32,6 +32,13 @@ Installation
           pip install -U brainpy[tpu]
 
 
+    .. tab-item:: Ecosystem
+
+       .. code-block:: bash
+
+          pip install -U BrainX
+
+
 ----
 
 Learn more
