Update main.yml (#34)

Found a invisible chars in the code
{{<C2><A0>ansible_distribution_major_version }}"

tasks/main.yml

@@ -21,7 +21,7 @@
 
   - name: group hypervisors by distro
     group_by:
-      key: "os_{{ ansible_distribution }}_{{ ansible_distribution_major_version }}"
+      key: "os_{{ ansible_distribution }}_{{ ansible_distribution_major_version }}"
 
   - name: Check if VM exists already
     virt: