move use to export; fix doc

- @ref needs to reference to some docstring already rendered in the menu

Author: LEXUGE

docs/src/API.md

@@ -31,7 +31,7 @@ See the [full list of operations](@ref all-operations) for a list of implemented
 ## Autogenerated API list
 
 ```@autodocs
-Modules = [QuantumClifford]
+Modules = [QuantumClifford, QuantumClifford.GraphSim]
 Private = false
 ```
 

src/QuantumClifford.jl

@@ -1452,7 +1452,7 @@ include("useful_states.jl")
 include("experimental/Experimental.jl")
 #
 include("./graphs/graphs.jl")
-using .GraphSim: graphstate, graphstate!, graph_gatesequence, graph_gate
+using .GraphSim
 #
 include("entanglement.jl")
 #

src/graphs/graphs.jl

@@ -1,8 +1,12 @@
 module GraphSim
 
+export graphstate, graphstate!, graph_gatesequence, graph_gate
+
 import Graphs: Graphs, nv, AbstractGraph
-using QuantumClifford
-using QuantumClifford: AbstractStabilizer
+using QuantumClifford: AbstractStabilizer, AbstractSingleQubitOperator,
+        sId1, sInvPhase, sSQRTX, CliffordOperator, SingleQubitOperator,
+        Stabilizer, sZ, sPhase, sX, sY, sHadamard, sInvSQRTX, @S_str, stabilizerview,
+        canonicalize_gott!, phases, sCPHASE, affectedqubits, canonicalize!, tab
 import QuantumClifford: nqubits, apply!
 
 include("single_qubit_tables.jl")