Add Task 06 description

Task06/task06.txt

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+This is Task 06 of the Eudyptula Challenge
+------------------------------------------
+
+Nice job with the module loading macros.  Those are tricky, but a very
+valuable skill to know about, especially when running across them in
+real kernel code.
+
+Speaking of real kernel code, let's write some!
+
+The tasks this time are:
+  - Take the kernel module you wrote for task 01, and modify it to be a
+    misc char device driver.  The misc interface is a very simple way to
+    be able to create a character device, without having to worry about
+    all of the sysfs and character device registration mess.  And what a
+    mess it is, so stick to the simple interfaces wherever possible.
+  - The misc device should be created with a dynamic minor number, no
+    need running off and trying to reserve a real minor number for your
+    test module, that would be crazy.
+  - The misc device should implement the read and write functions.
+  - The misc device node should show up in /dev/eudyptula.
+  - When the character device node is read from, your assigned id is
+    returned to the caller.
+  - When the character device node is written to, the data sent to the
+    kernel needs to be checked.  If it matches your assigned id, then
+    return a correct write return value.  If the value does not match
+    your assigned id, return the "invalid value" error value.
+  - The misc device should be registered when your module is loaded, and
+    unregistered when it is unloaded.
+  - Provide some "proof" this all works properly.
+
+As you will be putting your id into the kernel module, of course you
+haven't forgotten it, but just to be safe, it's "[redacted]".