Fixed typos reported by codespell. (#2890)

Author: slaff

docs/source/information/develop/ci.rst

@@ -97,7 +97,7 @@ To evaluate how much would be removed run this command (it's safe)::
 
       python clean-tools.py scan
 
-To perform 'dry-run' of a clean operation, without actually deleteing anything::
+To perform 'dry-run' of a clean operation, without actually deleting anything::
 
       python clean-tools.py clean
 

docs/source/upgrading/5.1-5.2.rst

@@ -18,7 +18,7 @@ The procedure has therefore been revised to use installation scripts instead of
 The initial installation step to bootstrap the installation remains unchanged: The ``choco-install.cmd`` script is fetched from the Sming ``develop`` branch and executed.
 The custom choco scripts have been replaced with scripted logic.
 
-Installation of toolchains is done as a separate step as it does not require administrative priviledges.
+Installation of toolchains is done as a separate step as it does not require administrative privileges.
 
 The documentation at https://sming.readthedocs.io/en/latest/getting-started/windows/index.html has been updated to reflect these changes.