[doc] fix

README.md

@@ -19,7 +19,7 @@ Quick links
 - The [contribute](doc/contribute.md) page gives some information about how to
   contribute to Batsim
 - Tutorials shows how to use Batsim and how it works:
-  - The [usage tutorial](doc/usage.md) explains how to execute a Batsim
+  - The [usage tutorial](doc/tuto_usage.md) explains how to execute a Batsim
     simulation, and how to setup development a docker environment
   - The [time tutorial](doc/tuto_time.md) explains how the time is managed in a
     Batsim simulation, shows essential protocol communications and gives an

doc/tuto_usage.md

@@ -43,15 +43,15 @@ mkdir /root/battuto
 Both Batsim and the scheduler must be executed within the container.
 
 Batsim can be executed first (in the same terminal used before):
-```
+``` bash
 batsim -e /root/battuto/out \
        -p /root/batsim/platforms/energy_platform_homogeneous_no_net_128.xml \
        -w /root/batsim/workload_profiles/batsim_paper_workload_example.json \
        --mmax-workload
-``̀`
+```
 
 In another terminal, connect to the ``battuto``
-```
+``` bash
 # Connect to the battuto environment
 docker exec -ti battuto bash