Merge pull request #485 from nilsdeppe/fix_basic_usage_example

Add extra namespace in Basic Usage example

Author: JohanMabille

docs/source/basic_usage.rst

@@ -21,8 +21,8 @@ Here is an example that computes the mean of two sets of 4 double floating point
 
     int main(int argc, char* argv[])
     {
-        xs::avx::batch<double> a(1.5, 2.5, 3.5, 4.5);
-        xs::avx::batch<double> b(2.5, 3.5, 4.5, 5.5);
+        xs::arch::avx::batch<double> a(1.5, 2.5, 3.5, 4.5);
+        xs::arch::avx::batch<double> b(2.5, 3.5, 4.5, 5.5);
         auto mean = (a + b) / 2;
         std::cout << mean << std::endl;
         return 0;