Changed the documentation to specify v before 'version' and code chan…

…ges to append 'v' if it not provided in version (#11) (#15)

* Chnaged the documentation to sepcify v before 'version'

* append v to version incase it does not already include

* review comments fix

README.md

@@ -1,7 +1,7 @@
 # Setup Helm
 #### Install a specific version of helm binary on the runner.
 
-Acceptable values are latest or any semantic version string like `1.15.0`. Use this action in workflow to define which version of helm will be used.
+Acceptable values are latest or any semantic version string like v2.16.7 Use this action in workflow to define which version of helm will be used.
 
 ```yaml
 - uses: azure/setup-helm@v1

lib/run.js

@@ -130,6 +130,9 @@ function run() {
         if (version.toLocaleLowerCase() === 'latest') {
             version = yield getStableHelmVersion();
         }
+        else if (!version.toLocaleLowerCase().startsWith('v')) {
+            version = 'v' + version;
+        }
         let cachedPath = yield downloadHelm(version);
         try {
             if (!process.env['PATH'].startsWith(path.dirname(cachedPath))) {

src/run.ts

@@ -120,6 +120,8 @@ async function run() {
     let version = core.getInput('version', { 'required': true });
     if (version.toLocaleLowerCase() === 'latest') {
         version = await getStableHelmVersion();
+    } else if (!version.toLocaleLowerCase().startsWith('v')) {
+        version = 'v' + version;
     }
 
     let cachedPath = await downloadHelm(version);