[data-shapes] Clarify that values of sh:order can be xsd:integer (#266)

HolgerKnublauch has just created a new issue for https://github.com/w3c/data-shapes:

== Clarify that values of sh:order can be xsd:integer ==
The definition of sh:order has the range commented out like this:

```
sh:order
 a rdf:Property ;
 rdfs:label "order"@en ;
 rdfs:comment "Specifies the relative order of this compared to its siblings. For example use 0 for the first, 1 for the second."@en ;
 # range: xsd:decimal or xsd:integer ;
 rdfs:isDefinedBy sh: .
```

which is good, but the prose states "The values of sh:order are decimals".

Should be changed to "The values of sh:order are literals with datatype xsd:decimal or xsd:integer".

Please view or discuss this issue at https://github.com/w3c/data-shapes/issues/266 using your GitHub account


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