Merge pull request #32 from JimBugwadia/update_docs2

update README

README.md

@@ -102,7 +102,7 @@ In the  example above we are verifying the following:
 
 To prevent repeated lookups for verified images, the Nirmata extension has a built-in cache.
 
-Caching is enabled by defauly and can be managed using the `--cacheEnabled` flag. The cache is a TTL based cache, i.e, entries expire automatically after sometime and the value of TTL can be customized using `--cacheTTLDurationSeconds` (default is 3600) and max number of entries in the cache can be configured using `--cacheMaxSize` (default is 1000).
+Caching is enabled by default and can be managed using the `--cacheEnabled` flag. The cache is a TTL based cache, i.e, entries expire automatically after sometime and the value of TTL can be customized using `--cacheTTLDurationSeconds` (default is 3600) and max number of entries in the cache can be configured using `--cacheMaxSize` (default is 1000).
 
 The cache stores the verification outcomes of images for the trust policy and verification outcomes of attestations with the trust policy and conditions. The cache is an in-memory cache which gets cleared when the pod is recreated. Cache will also be cleared when there is any change in trust policies and trust stores.