notes.md: Add book notes for Tutorial through Whitehorse

6-Reykjafik/notes.md

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+`Taken verbatim from my notebook`
+# Page 1
+```
+Reykjavik   ✓
+    4520(" E") looks interesting
+        + int @ main
+        => "What's the password?"
+    Creates XOR keystream
+    Decrypts block at
+
+    decrypted function:
+        Sets up new stack at 43da
+          Note: 4482: jmp #436c
+                110 away (ouch)
+                4536: jmp #43fc
+                -34 away (ouch)
+        2420: ~~puts(char*)~~?
+                function that takes input
+            password[24] -> 466d
+            36 char password?
+            466d
+            F m
+        call 2464
+        The password is Fm
+                lol
+
+    A program which might seem intimidating
+    may become easier if you rake it
+    one step at a time
+    Security by obscurity is dogshit
+    "Military grade" doesn't mean _shit_
+
+
+```