added functions

functions/search.fish

@@ -0,0 +1,15 @@
+function search
+    if test (count $argv) -lt 1
+        echo "Usage: search <string> [directory]"
+        return 1
+    end
+
+    set query $argv[1]
+    set dir "."
+
+    if test (count $argv) -ge 2
+        set dir $argv[2]
+    end
+
+    rg "$query" "$dir"
+end