Added zsh autocomplete hint for compdump reinit
Closes
MOS_MIGRATED_REVID=145395969
@@ -311,6 +311,9 @@ Bazel also comes with a zsh completion script. To install it:
cp scripts/zsh_completion/_bazel ~/.zsh/completion
```
+ You may have to call `rm -f ~/.zcompdump; compinit`
+ the first time to make it work.
+
2. Optionally, add the following to your .zshrc.
```
