Add several spelling corrections (#2033)

* Add several spelling corrections  
* Added requested changes from @vikivivi
diff --git a/codespell_lib/data/dictionary.txt b/codespell_lib/data/dictionary.txt
index 86c6121..039bf20 100644
--- a/codespell_lib/data/dictionary.txt
+++ b/codespell_lib/data/dictionary.txt
@@ -16662,7 +16662,12 @@
 intaces->instance
 intack->intact
 intall->install
+intallation->installation
 intallationpath->installationpath
+intallations->installations
+intalled->installed
+intalling->installing
+intalls->installs
 intance->instance, intense,
 intances->instances
 intantiate->instantiate
@@ -19804,6 +19809,7 @@
 nonexistance->nonexistence
 nonexistant->nonexistent
 nonnegarive->nonnegative
+nonneighboring->non-neighboring
 nonsence->nonsense
 nonsens->nonsense
 nonseperable->non-separable