Fix: Documentation/help inconsistency. (#10173)

Author: guillermodotn

src/poetry/console/commands/add.py

@@ -104,9 +104,9 @@ class AddCommand(InstallerCommand, InitCommand):
  (<b>git+https://github.com/python-poetry/poetry.git#develop</b>)
   - A subdirectory of a git repository\
  (<b>git+https://github.com/python-poetry/poetry.git#subdirectory=tests/fixtures/sample_project</b>)
-  - A git SSH url (<b>git+ssh://github.com/python-poetry/poetry.git</b>)
+  - A git SSH url (<b>git+ssh://git@github.com/python-poetry/poetry.git</b>)
   - A git SSH url with a revision\
- (<b>git+ssh://github.com/python-poetry/poetry.git#develop</b>)
+ (<b>git+ssh://git@github.com/python-poetry/poetry.git#develop</b>)
   - A file path (<b>../my-package/my-package.whl</b>)
   - A directory (<b>../my-package/</b>)
   - A url (<b>https://example.com/packages/my-package-0.1.0.tar.gz</b>)