Fix some typos and use the upstream project's spelling

Documentation/development.md

@@ -3,33 +3,37 @@
 ## Boot system
 
 `BOOT_SYS`:
+
 - efi
-- hyprid
+- hybrid
 - mbr
 
-HassOS is basicly used GPT. But for use GPT we need own the first 1024 of
-boot drive. Is that not possible, you can use MBR for your device, they work also with SPLs.
+HassOS is using GPT. But to use GPT we need own the first 1024 of boot drive. Is that's not possible, you can use MBR for your device. This also work with SPLs.
 
-Hyprid and SPL use both a hyprid MBR/GPT table but SPL move the GPT header 8MB for give space to write SPL and boot images before.
+Hybrid and SPL use both a hybrid MBR/GPT table but SPL move the GPT header 8 MB for give space to write SPL and boot images before.
 
 `BOOT_SPL`:
+
 - true
 - false
 
 Enable SPL update handling.
 
 `BOOTLOADER`:
-- uboot
+
+- U-Boot
 - barebox
 
-We support mainly uboot but for uefi system we can also use barebox. In future we hope to remove barebox with uboot also on uefi.
+We support mainly U-Boot but for UEFI systems we can also use [barebox](https://barebox.org/). In the future, we hope to remove barebox with U-Boot also on UEFI.
 
 `DISK_SIZE`:
+
 Default 2. That is the size of end image in GB.
 
 ## Supervisor
 
 `SUPERVISOR_MACHINE`:
+
 - intel-nuc
 - odroid-c2
 - odroid-n2
@@ -46,7 +50,8 @@ Default 2. That is the size of end image in GB.
 - raspberrypi4-64
 - tinker
 
-`SUPERVISOR_ARCH`
+`SUPERVISOR_ARCH`:
+
 - amd64
 - i386
 - armhf