message: Add additional information to references of my_crate in env_filter docs.
diff: @@ -446,6 +446,11 @@ impl EnvFilter {
  /// # Ok(())
  /// # }
  /// ```
  + /// In the above example, substitute `my_crate`, `module`, etc. with the
  + /// name your target crate/module is imported with. This might be
  + /// different from the package name in Cargo.toml (`-` is replaced by `_`).
  + /// Example, if the package name in your Cargo.toml is `MY-FANCY-LIB`, then
  + /// the corresponding Rust identifier would be `MY_FANCY_LIB`:
  pub fn add_directive(mut self, mut directive: Directive) -> Self {
  if !self.regex {
  directive.deregexify();
  