nice readme; fix makefile

makefile

@@ -1,3 +1,5 @@
 main:
 	nasm -g -f elf64 -o main.o main.s
 	ld -o main main.o
+
+.PHONY: main

readme.md

@@ -1,9 +1,19 @@
-# x86_64 assembly
+Very small HTTP server written in x86-64 assembly https://en.wikipedia.org/wiki/X86-64
 
-https://josemariasola.github.io/reference/assembler/Stanford%20CS107%20Guide%20to%20x86-64.pdf
-https://www.bencode.net/blob/nasmcheatsheet.pdf
-https://x64.syscall.sh/
-https://userpages.cs.umbc.edu/tsimo1/CMSC313/nasmdoc/html/nasmdoc3.html
-https://web.stanford.edu/class/cs107/resources/x86-64-reference.pdf
+- one thread
+- event loop with poll(2)
+- targets x86-64 linux
 
-https://engineering.purdue.edu/ece264/22su/hw/ec02/resources/x64-intro.pdf
+# Why?
+
+Why not?
+
+# x86-64 assembly resources
+
+- https://josemariasola.github.io/reference/assembler/Stanford%20CS107%20Guide%20to%20x86-64.pdf
+- https://www.bencode.net/blob/nasmcheatsheet.pdf
+- https://x64.syscall.sh/
+- https://userpages.cs.umbc.edu/tsimo1/CMSC313/nasmdoc/html/nasmdoc3.html
+- https://web.stanford.edu/class/cs107/resources/x86-64-reference.pdf
+
+- https://engineering.purdue.edu/ece264/22su/hw/ec02/resources/x64-intro.pdf