Add custom words for spell check

Signed-off-by: Thomas Sedlmayer <[email protected]>

Author: thomassedlmayer

.github/spelling_custom_words_en_US.txt

@@ -250,6 +250,7 @@ OSI's
 osmp
 Ouml
 ouml
+oversized
 parametrization
 parametrize
 Parkausweis
@@ -259,6 +260,7 @@ Parkschein
 Parkstände
 Paulat
 pdf
+perceivably
 png
 Polizeikontrolle
 polyline