update the tangled block and example

trex.org

@@ -304,7 +304,7 @@ power = [
 	,      "prim_num" : [ "dim"  , []                    ]
 	,     "shell_num" : [ "dim"  , []                    ]
 	, "nucleus_index" : [ "index", [ "basis.shell_num" ] ]
-	,       "ang_mom" : [ "int"  , [ "basis.shell_num" ] ]
+	, "shell_ang_mom" : [ "int"  , [ "basis.shell_num" ] ]
 	,  "shell_factor" : [ "float", [ "basis.shell_num" ] ]
 	,   "shell_index" : [ "index", [ "basis.prim_num" ]  ]
 	,      "exponent" : [ "float", [ "basis.prim_num" ]  ]
@@ -352,7 +352,7 @@ nucleus_index =
   1, 1, 1, 1, 1, 1 ] 
 
 # 3 shells in S (l=0), 2 in P (l=1), 1 in D (l=2)
-ang_mom =
+shell_ang_mom =
 [ 0, 0, 0, 1, 1, 2, 
   0, 0, 0, 1, 1, 2 ]