diff --git a/doc/hacking/overview.md b/doc/hacking/overview.md
index c5ef033..ecac1e1 100644
--- a/doc/hacking/overview.md
+++ b/doc/hacking/overview.md
@@ -37,10 +37,10 @@ file and stick with it. Note however that this won't apply to libraries.
 Use good sense
 --------------
 
-> Le bon sens est la chose du monde la mieux partagée; car 
+> Le bon sens est la chose du monde la mieux partagée; car
 > chacun pense en être si bien pourvu, que ceux même qui sont les
 > plus difficiles à contenter en toute autre chose n’ont point coutume
-> d’en désirer plus qu’ils en ont.  
+> d’en désirer plus qu’ils en ont.
 >
 > -- [René Descartes], [Discours de la méthode]
 
@@ -87,10 +87,10 @@ The conventions I try to honor are:
         }
         
         switch(v){
-        case AnOption:	
+        case AnOption:
         	...
         	break;
-        case AnotherOption:	
+        case AnotherOption:
         	...
         	break;
         default:
@@ -110,26 +110,26 @@ The conventions I try to honor are:
         }
     ```
 
-5.  Use one space around `=`  `+`  `-`  `<`  `>`  `*`  `/`  `%`  
+5.  Use one space around `=`  `+`  `-`  `<`  `>`  `*`  `/`  `%`
     `|`  `&`  `^`  `<=`  `>=`  `==`  `!=`  `?`  `:`, but no space between
     unary operators (`&`  `*`  `+`  `-`  `~`  `!`  `sizeof`  `typeof`
-    `alignof`  `__attribute__`  `defined`  `++`  `--`) and their 
+    `alignof`  `__attribute__`  `defined`  `++`  `--`) and their
     operand, and obviously no space around the `.` and `->` structure
     member operators
 
 6.  Use short names in local variables and module functions when the
-    meaning is obvious in the context using them (`tmp`, `i`, `j`).  
+    meaning is obvious in the context using them (`tmp`, `i`, `j`).
 
 7.  Use descriptive names for globally visible functions and variables
     (eg `proc_segment_detach`). In Jehanne's kernel a few frequently
-    used global variables are allowed to violate this rule: 
+    used global variables are allowed to violate this rule:
     `up` (current user process), `m` (current processor) and `sys`.
-    
+
 8.  Use `typedefs` for struct and enums (CamelCase) but not for pointers.
 
 9.  Functions should be short, do one thing, hold few local variables
     and `goto` a centralized cleanup section on error.
-    Keep in mind errors when designing the return values of your functions.  
+    Keep in mind errors when designing the return values of your functions.
     Use Plan9's `error()` machinery only in functions directly called by
     other modules (like `Dev` methods and exported ones), not just
     to easily unroll the stack.
@@ -164,7 +164,7 @@ environment with `./hacking/devshell.sh` that will start a new Bash:
 
 `devshell.sh` also gives you an hook to customize your development
 environment without touching the repository: if the
-`$JEHANNE_DEVELOPER_DIR` (default: `~/.jehanne/`) exists and contains 
+`$JEHANNE_DEVELOPER_DIR` (default: `~/.jehanne/`) exists and contains
 a script named `devshell.sh`, such script will be sourced.
 For example my own `devshell.sh` starts a couple of terminals.
 
@@ -219,14 +219,14 @@ to day testing is done with Qemu.
 To run the system in Qemu you can run:
 
 `./hacking/runOver9P.sh`
-: that connects a 9P2000 server running on the linux host 
+: that connects a 9P2000 server running on the linux host
   to mount `$JEHANNE` as the root file system
 
 `./hacking/runDisk.sh [path/to/disk/image]`
 : that uses the disk image
   provided (or `$DISK`) to as the root file system
 
-`./hacking/QA.sh` 
+`./hacking/QA.sh`
 : used by `runqemu` to start the workhorse or to execute the QA checks
   (it should not be executed directly).
 
@@ -245,13 +245,13 @@ These scripts react to a few environment variables:
 : number of simmetric processors to use
 
 Qemu will multiplex the terminal I/O between Jehanne's serial console
-and Qemu monitor. To switch between the two use `Ctrl-a x`. 
+and Qemu monitor. To switch between the two use `Ctrl-a x`.
 To stop Qemu use `Ctrl-a c`.
 
 To create or update a bootable usb stick (or a disk image to be used
 with Bochs or Qemu) you can use:
 
-`./hacking/disk-create.sh` 
+`./hacking/disk-create.sh`
 : creates a raw disk image at `$DISK`
   (default `./hacking/sample-disk.img`). It uses syslinux, its bios
   files (looked up at `$SYSLINUXBIOS`) and fdisk, but it can be run as
@@ -280,7 +280,7 @@ Debugging
 ---------
 Once you get used to the codebase, debugging Jehanne is pretty simple.
 
-First start the system in Qemu with either `./hacking/runOver9P.sh` or 
+First start the system in Qemu with either `./hacking/runOver9P.sh` or
 `./hacking/runDisk.sh`. If `$KAPPEND` contains the string "waitgdb",
 Jehanne will stop at an early stage after the boot and will wait for a
 gdb connection.
@@ -315,7 +315,7 @@ another hook to ease your debug as you like.
 
 If `$JEHANNE_GDB_LOGS` is defined the whole session will be logged there,
 prepended with the current commit hash and a brief summary of the
-repository status. 
+repository status.
 
 The workhorse
 -------------
@@ -330,7 +330,7 @@ Custom Go tools
 Here is a brief summary of the other custom tools in
 `./hacking/src/jehanne/cmd/`:
 
-`runqemu` 
+`runqemu`
 : runs Jehanne in a qemu instance and send commands to it.
   It is used both during compilation (to create the initial ram disk,
   for example) and to run [quality checks].