Backport tutorial party fixes

tutorials/06-physics-simulation-concepts.md

@@ -128,7 +128,7 @@ and the blades will stop after some time due to friction.
 
 @image html img/lift_drag_torque.gif width=100%
 
-Several simulation features come into effect in this demo. The lift and drag force is computed by taking the wind pressure, mass of the cude, and gravity into account, and the resulting force is exerted on multiple joints. Dartsim is used to power this demo.
+Several simulation features come into effect in this demo. The lift and drag force is computed by taking the wind pressure, mass of the cube, and gravity into account, and the resulting force is exerted on multiple joints. Dartsim is used to power this demo.
 
 ### Buoyancy
 

tutorials/07-implementing-a-physics-plugin.md

@@ -109,7 +109,7 @@ to create a simple loader. Then we test our plugin using the loader as follow:
 
 ```bash
 cd ~
-./hello_world_loader/build/hello_world_loader simple_plugin/build/libHelloWorldPlugin.so
+./hello_world_loader/build/hello_world_loader hello_world_plugin/build/libHelloWorldPlugin.so
 ```
 
 And you will see the engine info of our plugin:

tutorials/09_use_custom_engine.md

@@ -172,7 +172,7 @@ mkdir build
 cd build
 cmake ..
 # Linux
-cmake --build . --target PluginTest
+make
 # Windows
 cmake --build . --target PluginTest --config Release
 ```