diff --git a/NotNullStrings.sln b/NotNullStrings.sln
index fc9e569..f8cfaa7 100644
--- a/NotNullStrings.sln
+++ b/NotNullStrings.sln
@@ -3,7 +3,12 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
 VisualStudioVersion = 17.10.34607.79
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "NotNullStrings", "NotNullStrings\NotNullStrings.csproj", "{545E2EC3-521D-4014-AD82-1082AB73DE55}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "NotNullStrings", "NotNullStrings\NotNullStrings.csproj", "{545E2EC3-521D-4014-AD82-1082AB73DE55}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Docs", "Docs", "{DD9650DB-BAC4-4EED-BEBF-CA6325347E1F}"
+	ProjectSection(SolutionItems) = preProject
+		README.md = README.md
+	EndProjectSection
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution