2 files changed, 26 insertions, 2 deletions
diff --git a/Makefile b/Makefile
index d713229..0fd74c4 100644
--- a/Makefile
+++ b/Makefile
@@ -20,9 +20,9 @@ INC_DIRS := $(SRC_DIR)
 INC_FLAGS := $(addprefix -I,$(INC_DIRS))
 
 # OP_FLAG := -Ofast
-# OP_FLAG := -O3
+OP_FLAG := -O3
 # OP_FLAG := -Oz
-OP_FLAG := -g
+# OP_FLAG := -g
 
 LINK_FLAGS := -lffi
 
diff --git a/README.md b/README.md
index 23d8e40..ae9dd84 100644
--- a/README.md
+++ b/README.md
@@ -7,10 +7,34 @@ A strongly statically typed programming language with a simple and friendly synt
 * Operator overloading
 * Function overloading
 * Generic programming
+* Meta programming
 * Low level access
 * Pointer
 * ...
 
+# Requirement
+* Linux or *nix like OS
+* git
+* gnu make
+* gcc (you can use clang or tcc but you have to change make for it)
+* libffi (for calling C functions)
+
+# How to use ?
+## Clone the repo
+```
+git clone https://github.com/A404M/felan
+cd felan
+```
+## Building
+```
+make
+```
+## Running
+Run ./build/felan with any file which you want to run
+```
+./build/felan code/main.felan
+```
+
 # Examples
 ## Hello world
 ```