clarify comment

Author: peterbecich

src/Spago/Paths.purs

@@ -46,7 +46,7 @@ toLocalCachePackagesPath rootDir = Path.concat [ toLocalCachePath rootDir, "p" ]
 toLocalCacheGitPath :: FilePath -> FilePath
 toLocalCacheGitPath rootDir = Path.concat [ toLocalCachePath rootDir, "g" ]
 
--- search maximum 4 levels up the tree to find the Git project, if it exists
+-- search maximum 4 levels up the tree to find all other `spago.yaml`, which may contain workspace definition
 toGitSearchPath :: FilePath -> Array FilePath
 toGitSearchPath rootDir = reverse $ makeSearchPaths rootDir 4 where
   makeSearchPath :: FilePath -> Int -> FilePath