update README and Makefile

Makefile

@@ -2,9 +2,7 @@ first:
 	gcc src/main.c -o main
 
 install:
-	echo "alias wordle='$(realpath build/main)'" >> ~/.bashrc
+	echo "alias wordlec='$(realpath main)'" >> ~/.bashrc
-	echo "WORDLE_PATH='$(realpath build/main)'" >> ~/.bashrc
-	export WORDLE_PATH
 	source ~/.bashrc
 run:
-	./build/main
+	./main

README.md

@@ -15,6 +15,12 @@ Proven working on Linux ONLY. Contributions welcome!
 
 3. Start the game  
 `make && make run`  
+or  
+`./main` to be able to run with arguments
+
+Optionally you can install it and it can be accessed from any place in the filesystem.   
+`make install`    
+Then you can just use `wordlec` (plus optional arguments) to launch the game.  
 
 # How to play