update README

README.md

@@ -1,5 +1,7 @@
 ### start common example ###
+```
 node app.js <method> <coin>
+```
 
 # if you used pm2, you can use this command
 ```
@@ -141,7 +143,7 @@ pm2 start app.js --name <pm2 process name> -- <method> <coin>
 ```
 
 # start examples
-############# pm2 start common #############
+``` pm2 start common
 pm2 start app.js --name nexa-hashratev2 -- hashrate nexa
 pm2 start app.js --name nexa-reportv2 -- report nexa
 pm2 start app.js --name nexa-confirm -- confirm nexa
@@ -190,4 +192,5 @@ pm2 start app.js --name alph-report -- report alph
 pm2 start app.js --name alph-hashrate -- hashrate alph
 pm2 start app.js --name alph-confirm -- confirm alph
 pm2 start app.js --name alph-distribution -- distribution alph
-pm2 start app.js --name alph-balance -- balance alph
+pm2 start app.js --name alph-balance -- balance alph
+```