couldn't figure how to prefer the tldr version

I like the script offering and idea to interface to existing sources but I like tldr git-submodule a little better but couldn't figure out how to make cht.sh show it, the google offering:

```
curl cht.sh/tldr:git-submodule
```

still gave a the git.sh version and the other offering:

```
curl cht.sh/git-submodule/:tldr
```

says not found. Maybe you guys should make google be less stupid about your stuff ;)

Start by reproducing the two curl commands shown in the issue and compare their results for git-submodule. Trace the command or URL entry point that selects between the git.sh and tldr sources. Done means the preferred tldr version can be requested reliably, with the supported syntax made clear.

Written by the indexing model from the issue text.