added fish config

fish/functions/_autopair_insert_left.fish

@@ -0,0 +1,13 @@
+function _autopair_insert_left --argument-names left right
+    set --local buffer (commandline)
+    set --local before (commandline --cut-at-cursor)
+
+    commandline --insert -- $left
+
+    switch "$buffer"
+        case "$before"{," "\*,$autopair_right\*}
+            set --local index (commandline --cursor)
+            commandline --insert -- $right
+            commandline --cursor $index
+    end
+end