cli: Improve `rad init` wording

If the user passes a <path> argument to init, it is incorrect and a
bit confusing to reference the "current directory" or "this directory"
e.g. "run rad . in current directory" when the repo was not created in the
current directory and was created with a path argument instead.

Use the path provided by the user in help text, otherwise reference
the current directory.

radicle-cli/examples/rad-init-no-git.md

@@ -3,7 +3,7 @@ it will fail:
 
 ``` (fail)
 $ rad init
-✗ Error: a Git repository was not found at the current path
+✗ Error: a Git repository was not found at the given path
 ```
 
 Ok so let's initialize one.

radicle-cli/src/commands/init.rs

@@ -196,7 +196,7 @@ pub fn init(options: Options, profile: &profile::Profile) -> anyhow::Result<()>
     let repo = match git::Repository::open(&path) {
         Ok(r) => r,
         Err(e) if radicle::git::ext::is_not_found_err(&e) => {
-            anyhow::bail!("a Git repository was not found at the current path")
+            anyhow::bail!("a Git repository was not found at the given path")
         }
         Err(e) => return Err(e.into()),
     };
@@ -316,8 +316,13 @@ pub fn init(options: Options, profile: &profile::Profile) -> anyhow::Result<()>
                 term::format::dim("(RID)"),
                 term::format::highlight(rid.urn())
             );
+            let directory = if path == cwd {
+                "this directory".to_owned()
+            } else {
+                term::format::tertiary(path.display()).to_string()
+            };
             term::info!(
-                "You can show it any time by running {} from this directory.",
+                "You can show it any time by running {} from {directory}.",
                 term::format::command("rad .")
             );
             term::blank();