Fix blk overflow in usage guide index

Now that adev is directly in core, things are easier.

blk/003

@@ -10,8 +10,7 @@ the dictionary (B30) for a word reference.
 
 Contents
 
- 4 Number literals              6 Compilation vs meta-comp.
+ 5 Number literals              6 Compilation vs meta-comp.
  8 Interpreter I/O             11 Signed-ness
 14 Addressed devices           17 DOES>
-18 Disk blocks                 21 How blocks are organized
-22 Addressed devices
+18 Disk blocks                                          (cont.)

blk/004

@@ -1,11 +1 @@
-Number literals
-
-Traditional Forth often use HEX/DEC switches to go from decimal
-to hexadecimal parsing. Collapse OS parses literals in a way
-that is closer to C.
-
-Straight numbers are decimals, numbers starting with "0x"
-are hexadecimals (example "0x12ef"), "0b" prefixes indicate
-binary (example "0b1010"), char literals are single characters
-surrounded by ' (example 'X'). Char literals can't be used for
-whitespaces.
+21 How blocks are organized    22 Addressed devices

blk/005

@@ -0,0 +1,12 @@
+Number literals
+
+Traditional Forth often use HEX/DEC switches to go from decimal
+to hexadecimal parsing. Collapse OS parses literals in a way
+that is closer to C.
+
+Straight numbers are decimals, numbers starting with "0x"
+are hexadecimals (example "0x12ef"), "0b" prefixes indicate
+binary (example "0b1010"), char literals are single characters
+surrounded by ' (example 'X'). Char literals can't be used for
+whitespaces.
+

recipes/rc2014/eeprom/README.md

@@ -34,19 +34,13 @@ I don't think you need a schematic. It's really simple.
 
 ### Building the binary
 
-You build the binary by modifying the base recipe's `xcomp` unit. This binary
-is missing 2 things: Addressed devices and the AT28 Driver.
+The binary from the base recipe has almost all it needs to write to EEPROM. The
+only thing it needs is the AT28 driver from B590. You could add it to the
+`xcomp` unit and rebuild, but the driver is so tiny, you're probably better off
+loading it at runtime.
 
-Addressed devices are at B140. If you read that block, you'll see that it tells
-you to load block 142. Open the `xcomp` unit and locate the ACIA driver loading
-line. Insert your new load line after that one.
-
-Do the same thing with the AT28 driver (B590)
-
-You also have to modify the initialization sequence at the end of the `xcomp`
-unit to include `ADEV$`.
-
-Build again, write `os.com` to EEPROM.
+If your system has mass storage, it's as easy as a LOAD. If it doesn't, you
+can use `/tools/exec` to send `blk/591` to the RC2014.
 
 ## Writing contents to the AT28
 
@@ -58,7 +52,7 @@ run this from your modern computer:
     ./upload <tty device> a000 <filename>
 
 Then, activate `AT28!` with `' AT28! A!* !` and then run
-`0xa000 0x2000 <size-of-bin> AMOVE`. `AT28!` checks every myte for integrity,
+`0xa000 0x2000 <size-of-bin> AMOVE`. `AT28!` checks every byte for integrity,
 so it there's no error, you should be fine. Your content is now on the EEPROM!
 
 Why not upload content directly to `0x2000` after having activated `AT28!`?