Fixed missing definition of `item`

README.md

@@ -166,7 +166,7 @@ Let's say you have a huge nested object and want to see if any item with the wor
```py
from deepdiff import DeepSearch
obj = {"long": "somewhere", "string": 2, 0: 0, "somewhere": "around"}
ds = DeepSearch(obj, item, verbose_level=2)
ds = DeepSearch(obj, "somewhere", verbose_level=2)
print(ds)
```

@@ -188,7 +188,7 @@ Just grep through your objects as you would in shell!
```py
from deepdiff import grep
obj = {"long": "somewhere", "string": 2, 0: 0, "somewhere": "around"}
ds = obj | grep(item)
ds = obj | grep("somewhere")
print(ds)
```