message: Add libssl-dev install command
diff: @@ -32,7 +32,11 @@ a repo and the commit containing your project and paste the verbose output).
  Tarpaulin depends on cargo which depends on SSL. Make sure you've installed
  your distros ssl development libraries and they are on your path before
  -attempting to install tarpaulin.
  +attempting to install tarpaulin. For example for Debian/Ubuntu:
  +
  +```text
  +apt-get update && apt-get install libssl-dev
  +```
  Tarpaulin is a command-line program, you install it into your linux development
  environment with cargo install:
  @@ -44,6 +48,7 @@ cargo install cargo-tarpaulin
  ### Command line
  To get detailed help on available arguments when running tarpaulin call:
  +
  ```text
  cargo tarpaulin --help
  ```
  