Improve error message when running examples wihtout environment

Author: luckysori

new_project/examples/btc_eth/src/index.ts

@@ -148,7 +148,7 @@ function createSwap(maker: Actor, taker: Actor): SwapRequest {
 function checkEnvFile(path: string) {
     if (!fs.existsSync(path)) {
         console.log(
-            "Could not find %s file. Did you run \\`create-comit-app start-env\\`?",
+            "Could not find file %s. Did you run `yarn create comit-app start-env`?",
             path
         );
         process.exit(1);

new_project/examples/erc20_btc/src/index.ts

@@ -165,7 +165,7 @@ function createSwap(maker: Actor, taker: Actor): SwapRequest {
 function checkEnvFile(path: string) {
     if (!fs.existsSync(path)) {
         console.log(
-            "Could not find %s file. Did you run \\`create-comit-app start-env\\`?",
+            "Could not find file %s. Did you run `yarn create comit-app start-env`?",
             path
         );
         process.exit(1);

new_project/examples/separate_apps/src/lib.ts

@@ -45,7 +45,7 @@ export interface Actor {
 export function checkEnvFile(path: string) {
     if (!fs.existsSync(path)) {
         console.log(
-            "Could not find %s file. Did you run \\`create-comit-app start-env\\`?",
+            "Could not find file %s. Did you run `yarn create comit-app start-env`?",
             path
         );
         process.exit(1);