Updating typos and some testing information in the README to reflect changes made.

Author: LinuxDevon

README.md

@@ -6,12 +6,20 @@ from the python dbc library here: https://pypi.org/project/cantools/
 
 ## Testing
 
-I am trying to alwasy make sure that this is very well tested code. I am using Catch2 to do this
+I am trying to always make sure that this is very well tested code. I am using Catch2 to do this
 testing and if you aren't familiar here is the documentation: https://github.com/catchorg/Catch2/blob/master/docs/Readme.md#top
 
+To run the tests locally you can use the following:
+```bash
+mkdir build
+cd build
+cmake ..
+make test -j
+```
+
 ## Building
 
-I am using Cmake to be able to build the tests. I plan on doing more with it but this is what it
+I am using Cmake to be able to build the tests and the lib. I plan on doing more with it but this is what it
 is for now. I am doing developement on the WSL Ubuntu 18.04 kernel. This doesn't mean that IDEs aren't
 welcome but the build process might not be suited for this. You will need to modify it for your
 needs. Feel free to submit changes so the building process will be more robust.
@@ -24,8 +32,6 @@ cmake ..
 make
 ```
 
-These steps produce an executable in the bin folder.
-
 ## Contributing
 
 I welcome all help! Please feel free to fork and start some pull requests!