create rng ouside loop & improve readme

README.md

@@ -8,3 +8,5 @@ example output:
 ```
 retrace-choice-litter-dreamt-zipping
 ```
+
+This project uses the [EFF's Wordlists for Random Passphrases](https://www.eff.org/deeplinks/2016/07/new-wordlists-random-passphrases) and [PCG random](https://www.pcg-random.org/) to pick random words

passgen.cpp

@@ -45,10 +45,10 @@ int main(int argc, char *argv[]) {
 		return 1;	
 	}
 
+	pcg_extras::seed_seq_from<std::random_device> seed_source;
+	pcg32 rng(seed_source);
+
 	for (int i = 0; i < count; i++) {
-		pcg_extras::seed_seq_from<std::random_device> seed_source;
-    	pcg32 rng(seed_source);
-		
 		int random_int = std::uniform_int_distribution<int>(0, wordlist.size())(rng);
 
 		std::cout << wordlist[random_int];