Reorganize the docs (#10)

Author: DilumAluthge

docs/make.jl

@@ -13,6 +13,7 @@ makedocs(;
     ),
     pages=[
         "Home" => "index.md",
+        "CDM Version" => "version.md",
         "Examples" => "examples.md",
         "API" => "api.md",
     ],

docs/src/index.md

@@ -4,9 +4,4 @@ CurrentModule = OMOPCommonDataModel
 
 # OMOPCommonDataModel
 
-The following table maps the version of OMOPCommonDataModel.jl to the
-corresponding version of the Common Data Model (CDM).
-
-| OMOPCommonDataModel.jl | CDM    |
-| ---------------------- | ------ |
-| 0.1.0                  | 6.0.0  |
+OMOPCommonDataModel.jl is a pure Julia implementation of the [OMOP Common Data Model (CDM)](https://github.com/OHDSI/CommonDataModel).

docs/src/version.md

@@ -0,0 +1,12 @@
+```@meta
+CurrentModule = OMOPCommonDataModel
+```
+
+# CDM Version
+
+The following table maps the version of OMOPCommonDataModel.jl to the
+corresponding version of the Common Data Model (CDM).
+
+| OMOPCommonDataModel.jl | CDM    |
+| ---------------------- | ------ |
+| 0.1.0                  | 6.0.0  |