docs: Standardise URLs and fix wording in i18n.md

docs/i18n.md

@@ -10,7 +10,7 @@ First, make sure you have installed the `gettext` package.
 Here are the steps to add/update a translation (you should run all scripts from
 the source root):
 
-1. Get an up-to-date copy of the source files. Preferably, make a clone on
+1. Get an up-to-date copy of the source files. Preferably, make a fork on
    GitHub and clone it locally on your machine; this way you can later make a
    pull request to the main project.
 
@@ -31,7 +31,7 @@ the source root):
    from your environment; to start it in another language, run
    `LANGUAGE=<language> ./bin/solaar`.
 
-You can edit the translation iteratively, just repeat from step 3.
+To edit the translation iteratively, just repeat from step 3.
 If the upstream changes, do a `git pull` and then repeat from step 2.
 
 Before opening a pull request, please run `./tools/po-update.sh <language>` again. This will
@@ -55,14 +55,14 @@ Some of the languages Solaar has been translated to are listed below. A full lis
 - Svensk: [Daniel Zippert][zipperten], Emelie Snecker
 
 [Rongronggg9]: https://github.com/Rongronggg9
-[papoteur]: http://github.com/papoteur
-[david-geiger]: http://github.com/david-geiger
-[damsweb]: http://github.com/damsweb
+[papoteur]: https://github.com/papoteur
+[david-geiger]: https://github.com/david-geiger
+[damsweb]: https://github.com/damsweb
 [DJm00n]: https://github.com/DJm00n
 [jose1711]: https://github.com/jose1711
-[nexces]: http://github.com/nexces
-[zipperten]: http://github.com/zipperten
-[micheleolivo]: http://github.com/micheleolivo
+[nexces]: https://github.com/nexces
+[zipperten]: https://github.com/zipperten
+[micheleolivo]: https://github.com/micheleolivo
 [drovetto]: https://github.com/drovetto
-[jrbenito]: https://github.com/jrbenito/
-[jeblad]: https://github.com/jeblad/
+[jrbenito]: https://github.com/jrbenito
+[jeblad]: https://github.com/jeblad