improve spelling

doc/spelling_wordlist.txt

@@ -6,18 +6,82 @@ Escpos
 Escpos
 escpos
 
+bitImageColumn
+bitImageRaster
+ep
+pc
+cp
+
+csoft
+Frédéric
+Headcrash
+Krispy
+primax
+Tahri
+reck
+mrwunderbar
+zouppen
+kedare
+Foaly
+brendanhowell
+der
+fvdsn
+Marull
+Paretas
+Kakistocrat
+
+barcode
 barcodes
 baudrate
+Bashlinux
+capabilities
+cashdraw
 charcode
+changelog
+cheque
+codebase
+codecov
+codepages
+config
+del
 dev
 dialout
+docstrings
 ean
 Ean
+encodable
+fff
+io
+json
+latin
+libusb
 lp
 lsusb
+natively
+php
+pre
+prefilled
 printcap
 programmatically
+py
+pypy
+pyyaml
+px
+qrcode
 Raspbian
+rebase
+rebased
+resetted
+rst
+submodule
+src
+testcases
+th
 Todo
 traceback
-udev
+udev
+usb
+usec
+virtualenvs
+whitespaces
+xml