Update .gitignore

.gitignore

@@ -1,11 +1,14 @@
-# For PCBs designed using KiCad: http://www.kicad-pcb.org/
-# Format documentation: http://kicad-pcb.org/help/file-formats/
+# For PCBs designed using KiCad: https://www.kicad.org/
+# Format documentation: https://kicad.org/help/file-formats/
 
 # Temporary files
 *.000
 *.bak
 *.bck
 *.kicad_pcb-bak
+*.kicad_sch-bak
+*-backups
+*.kicad_prl
 *.sch-bak
 *~
 _autosave-*
@@ -13,6 +16,8 @@ _autosave-*
 *-save.pro
 *-save.kicad_pcb
 fp-info-cache
+*.kicad_pcb.lck
+*.kicad_sch.lck
 
 # Netlist files (exported from Eeschema)
 *.net
@@ -21,36 +26,6 @@ fp-info-cache
 *.dsn
 *.ses
 
-
-# Back up files 
-*polygonus-Shortage-Version-backups/
-
-
-# Mac stuff
-# General
-.DS_Store
-.AppleDouble
-.LSOverride
-
-# Icon must end with two \r
-Icon
-
-
-# Thumbnails
-._*
-
-# Files that might appear in the root of a volume
-.DocumentRevisions-V100
-.fseventsd
-.Spotlight-V100
-.TemporaryItems
-.Trashes
-.VolumeIcon.icns
-.com.apple.timemachine.donotpresent
-
-# Directories potentially created on remote AFP share
-.AppleDB
-.AppleDesktop
-Network Trash Folder
-Temporary Items
-.apdisk
+# Exported BOM files
+*.xml
+*.csv