docs(CLI): Consolidate vcspull command into root

Author: tony

docs/cli/index.md

@@ -2,15 +2,26 @@
 
 # Commands
 
-```{toctree}
-:hidden:
-
-vcspull
-```
-
 ```{toctree}
 :caption: General commands
 :maxdepth: 1
 
 sync
 ```
+
+(cli-main)=
+
+(vcspull-main)=
+
+## Command: `vcspull`
+
+```{eval-rst}
+.. argparse::
+    :module: vcspull.cli
+    :func: create_parser
+    :prog: vcspull
+    :nosubcommands:
+
+    subparser_name : @replace
+        See :ref:`cli-sync`
+```