docs: fix README to enable copy and use as is

kuredev · Zordrak · commit 79a3b2fac9dc · 2025-07-04T14:00:38.000+01:00
diff --git a/README.md b/README.md
@@ -57,7 +57,7 @@ echo 'export PATH="$HOME/.tfenv/bin:$PATH"' >> ~/.bash_profile
 
 zsh:
 ```console
-$ echo 'export PATH="$HOME/.tfenv/bin:$PATH"' >> ~/.zprofile
+echo 'export PATH="$HOME/.tfenv/bin:$PATH"' >> ~/.zprofile
 ```
 
 fish:
