Add some missing methods to api.md

src/api.md

@@ -59,6 +59,10 @@ DenseOperator
 SparseOperator
 ```
 
+```@docs
+LazyKet
+
+
 ```@docs
 LazyTensor
 ```
@@ -223,7 +227,7 @@ permutesystems
 ```
 
 ```@docs
-exp(::AbstractOperator)
+exp(op::AbstractOperator)
 ```
 
 ```@docs
@@ -246,6 +250,10 @@ sparse(::AbstractOperator)
 current_time
 ```
 
+```@docs
+static_operator
+```
+
 ```@docs
 set_time!
 ```
@@ -347,6 +355,36 @@ wignersu2
 ylm
 ```
 
+### [Charge](@id API: Charge)
+
+```@docs
+ChargeBasis
+```
+
+```@docs
+ShiftedChargeBasis
+```
+
+```@docs
+chargestate
+```
+
+```@docs
+chargeop
+```
+
+```@docs
+expiφ
+```
+
+```@docs
+cosφ
+```
+
+```@docs
+sinφ
+```
+
 ### [N-level](@id API: N-level)
 
 ```@docs
@@ -361,6 +399,18 @@ transition(::Type{T}, ::NLevelBasis, ::Integer, ::Integer) where T
 nlevelstate
 ```
 
+```@docs
+paulix
+```
+
+```@docs
+pauliy
+```
+
+```@docs
+pauliz
+```
+
 ### [Spin](@id API: Spin)
 
 ```@docs
@@ -501,6 +551,10 @@ sparseprojector
 ManyBodyBasis
 ```
 
+```@docs
+FermionBitstring
+```
+
 ```@docs
 fermionstates
 ```
@@ -869,10 +923,6 @@ randstate_haar
 
 ## [Pauli](@id API: Pauli)
 
-```@docs
-PauliBasis
-```
-
 ```@docs
 PauliTransferMatrix
 ```