Fix typo in http_archive name for py cov documentation
Fixed a typo in the markdown documentation to avoid surprises when copy-paste the part.
Closes
@@ -201,7 +201,7 @@ Instead, add in your `WORKSPACE` e.g.
```starlark
http_archive(
- name = "coverage_linux_x86_64"",
+ name = "coverage_linux_x86_64",
build_file_content = """
py_library(
name = "coverage",
