Fix error in appveyor.yml

Author: Tobias Knöschke

appveyor.yml

@@ -38,7 +38,7 @@ before_build:
     cmake .. -G %generator%
 
 build:
-  project: c:\projects\cmake-init\build\cppassist.sln
+  project: c:\projects\cppassist\build\cppassist.sln
   verbosity: minimal
   parallel: true
 only_commits: