fix: install to aichat functions_dir (#49)

Argcfile.sh

@@ -452,7 +452,7 @@ clean@agent() {
 
 # @cmd Install this repo to aichat functions_dir
 install() {
-    functions_dir="$(aichat --info | grep functions_dir | awk '{print $2}')"
+    functions_dir="$(aichat --info | grep -w functions_dir | awk '{print $2}')"
     if [[ -z "$functions_dir" ]]; then
         _die "error: your aichat version don't support function calling"
     fi

README.md

@@ -40,7 +40,7 @@ hackernews
 Symlink this repo directory to aichat **functions_dir**:
 
 ```sh
-ln -s "$(pwd)" "$(aichat --info | grep functions_dir | awk '{print $2}')"
+ln -s "$(pwd)" "$(aichat --info | grep -w functions_dir | awk '{print $2}')"
 # OR
 argc install
 ```