Merge branch 'master' of https://github.com/plotly/Dash.jl

Author: waralex

README.md

@@ -4,7 +4,7 @@ Julia version >= 1.2 is required.
 It also works in 1.1 now, but I do not plan testing and support for versions under 1.2
 
 ```julia
-import Pkg; Pkg.add("Dash")
+import Pkg; Pkg.add(Pkg.PackageSpec(url = "https://github.com/plotly/Dash.jl.git"))
 ```
 
 ## Usage
@@ -142,4 +142,4 @@ end
 Be careful - in Dash.jl states came first in arguments list
 
 ### json:
-I use JSON2 for json serialization/deserialization, so in callbacks all json objects are NamedTuples not Dicts. In component props you can use both Dicts and NamedTuples for json objects. But be careful with single property objects: `layout = (title = "Test graph")` is not interpreted as NamedTuple by Julia  - you need add comma at the end `layout = (title = "Test graph",)`
+I use JSON2 for json serialization/deserialization, so in callbacks all json objects are NamedTuples not Dicts. In component props you can use both Dicts and NamedTuples for json objects. But be careful with single property objects: `layout = (title = "Test graph")` is not interpreted as NamedTuple by Julia  - you need add comma at the end `layout = (title = "Test graph",)`