updated readme. fix broken function

README.md

@@ -57,6 +57,63 @@ The most recently selected versions are presented at the top of the dropdown.
 2. For example, `tgswitch 0.10.7` for version 0.10.7 of terragrunt.
 3. Hit **Enter** to switch version.
 
+### Use .tgswitchrc file
+<img src="https://s3.us-east-2.amazonaws.com/kepler-images/warrensbox/tgswitch/manual-tgswitchrc.gif" alt="drawing" style="width: 170px;"/>
+
+1. Create a `.tgswitchrc` file containing the desired version
+2. For example, `echo "0.14.1" >> .tgswitchrc` for version 0.10.5 of terraform
+3. Run the command `tgswitch` in the same directory as your `.tgswitchrc`
+
+**Automatically switch with bash**
+
+Add the following to the end of your `~/.bashrc` file:
+(Use `.tgswitchrc`)
+
+```
+cdtgswitch(){
+  builtin cd "$@";
+  cdir=$PWD;
+  if [ -f "$cdir/.tgswitchrc" ]; then
+    tgswitch
+  fi
+}
+alias cd='cdtgswitch'
+```
+
+<img src="https://s3.us-east-2.amazonaws.com/kepler-images/warrensbox/tgswitch/auto-tgswitchrc.gif" alt="drawing" style="width: 170px;"/>   
+
+**Automatically switch with zsh**
+
+
+Add the following to the end of your `~/.zshrc` file:
+
+```
+load-tgswitch() {
+  local tgswitchrc_path=".tgswitchrc"
+
+  if [ -f "$tgswitchrc_path" ]; then
+    tgswitch
+  fi
+}
+add-zsh-hook chpwd load-tgswitch
+load-tgswitch
+```
+> NOTE: if you see an error like this: `command not found: add-zsh-hook`, then you might be on an older version of zsh (see below), or you simply need to load `add-zsh-hook` by adding this to your `.zshrc`:
+>    ```
+>    autoload -U add-zsh-hook
+>    ```
+
+*older version of zsh*
+```
+cd(){
+  builtin cd "$@";
+  cdir=$PWD;
+  if [ -f "$cdir/.tgswitchrc" ]; then
+    tgswitch
+  fi
+}
+```
+
 ## Additional Info
 
 See how to *upgrade*, *uninstall*, *troubleshoot* here:[More info](https://warrensbox.github.io/tgswitch/additional)

lib/symlink.go

@@ -17,7 +17,7 @@ func CreateSymlink(cwd string, dir string) {
 		Try running "unlink" to remove existing symlink.
 		If error persist, you may not have the permission to create a symlink at %s.
 		Error: %s
-		`, dir, dir, err)
+		`, dir, err)
 		os.Exit(1)
 	}
 }
@@ -33,7 +33,7 @@ func RemoveSymlink(symlinkPath string) {
 		Try running "unlink" to remove existing symlink.
 		If error persist, you may not have the permission to create a symlink at %s.
 		Error: %s
-		`, symlinkPath, symlinkPath, err)
+		`, symlinkPath, err)
 		os.Exit(1)
 	} else {
 		errRemove := os.Remove(symlinkPath)
@@ -44,7 +44,7 @@ func RemoveSymlink(symlinkPath string) {
 			Try running "unlink" to remove existing symlink.
 			If error persist, you may not have the permission to create a symlink at %s.
 			Error: %s
-			`, symlinkPath, symlinkPath, errRemove)
+			`, symlinkPath, errRemove)
 			os.Exit(1)
 		}
 	}