Update .travis.yml

Author: VJalili

.travis.yml

@@ -1,11 +1,12 @@
 os:
-    - linux
-matrix:
-    include:
-        -
-            dotnet: 3.0
-            install: ['dotnet restore']
-            language: csharp
-            mono: none
-            script: ['dotnet build', 'dotnet test GeUtilities.Tests/GeUtilities.Tests.csproj']
-            solution: GeUtilities.sln
+  - linux
+language: csharp
+solution: GeUtilities.sln
+mono: none
+dotnet: 3.0
+install:
+  - dotnet restore
+
+script:
+- dotnet build
+- dotnet test GeUtilities.Tests/GeUtilities.Tests.csproj