fuzz: add oss-fuzz build status link (cosmos#9153)

While at it, also update the example package path.

fuzz/README.md

@@ -8,13 +8,17 @@ go get -u github.com/dvyukov/go-fuzz/go-fuzz github.com/dvyukov/go-fuzz/go-fuzz-
 
 ## Preparing
 
-Create own go package under `fuzz` directory, which contains the function that you want to fuzz. See `fuzz/types/ParseCoin`
+Create own go package under `fuzz` directory, which contains the function that you want to fuzz. See `fuzz/types/parsecoin`
 for example, which has example for how to generating corpus and directory structure.
 
 ## Running
 
 ```
-$ cd types/ParseCoin
+$ cd types/parsecoin
 $ go-fuzz-build
 $ go-fuzz
 ```
+
+## oss-fuzz build status
+
+https://oss-fuzz-build-logs.storage.googleapis.com/index.html#cosmos-sdk