added: better explanations of version string for help command in the …

…failed version on installed command

src/cli.rs

@@ -57,6 +57,8 @@ enum Cli {
     /// install command if the version is not installed already
     Use {
         /// Version to switch to |nightly|stable|<version-string>|<commit-hash>|
+        /// 
+        /// A version-string can either be `vx.x.x` or `x.x.x` examples: `v0.6.1` and `0.6.0`
         version: String,
 
         /// Whether not to auto-invoke install command
@@ -68,6 +70,8 @@ enum Cli {
     /// out-of-date nightly version
     Install {
         /// Version to be installed |nightly|stable|<version-string>|<commit-hash>|
+        /// 
+        /// A version-string can either be `vx.x.x` or `x.x.x` examples: `v0.6.1` and `0.6.0`
         version: String,
     },
 
@@ -79,6 +83,9 @@ enum Cli {
     #[clap(alias = "remove", visible_alias = "rm")]
     Uninstall {
         /// Optional Version to be uninstalled |nightly|stable|<version-string>|<commit-hash>|
+        /// 
+        /// A version-string can either be `vx.x.x` or `x.x.x` examples: `v0.6.1` and `0.6.0`
+        /// 
         /// If no Version is provided a prompt is used to select the versions to be uninstalled
         version: Option<String>,
     },

src/helpers/version/mod.rs

@@ -109,7 +109,13 @@ pub async fn parse_version_type(client: &Client, version: &str) -> Result<Parsed
                 });
             }
 
-            Err(anyhow!("Please provide a proper version string"))
+            Err(anyhow!(
+                "Please provide a proper version string. Valid options are:
+
+                    • stable|latest|nightly - Latest stable, most recent, or nightly build
+                    • [v]x.x.x             - Specific version (e.g., 0.6.0 or v0.6.0)
+                    • <commit-hash>        - Specific commit hash"
+            ))
         }
     }
 }