Add git http protocol

guides/Best_practise--Connecting_Hawk_to_the_world

@@ -95,12 +95,43 @@ Git essentially supports two [protocols](https://git-scm.com/book/en/v2/Git-on-t
 
 Both protocols can routed through a SOCKS5 proxy. 
 
-Two protocols: https and ssh
+==**TODO: do we recommend one over the other?**==
 
-Push works with https protocol as well, see below. 
 
 ### git https protocol
 
+Requirements:
+  - set up a proxy with ssh as describe in [this section](#setting-up-a-proxy-with-ssh)
+  - set https proxy variables as describe in [this section](#httpshttp-proxy-variables)
+
+The https protocol is mostly used to clone public git repositories for read-only access (without the intension to push changes upstream). In these cases, git does not use any kind of authentication. However, git can also use authentication through the https protocol.
+
+In the simplest case, cloning public repositories without authentication just requires setting up the SOCKS5 proxy and defining the https/http proxy environment variables as explained above. Then just clone with
+```bash
+# set up proxy with ssh and continue in the terminal which just opened 
+# set https/http proxy environment variables as describe above, then
+hawk> git clone https://github.com:user/project.git
+
+hawk> git pull
+```
+
+To access remote repositories with authentication, we recommend using _access tokens_. These access tokens are supported my most repositories. Follow the links to the respective documentation: [github](https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/managing-your-personal-access-tokens), gitlab, [gitea](https://docs.codeberg.org/advanced/access-token/), etc. 
+
+We recommend to set up dedicated access tokens for access from Hawk. Then work on the repository with 
+```bash
+# set up proxy with ssh and continue in the terminal which just opened 
+# set https/http proxy environment variables as describe above, then
+# set up access tokens for repository
+hawk> git clone https://github.com:user/project.git
+# enter user name
+# enter access token as password
+
+hawk> git fetch
+hawk> git pull
+hawk> git push
+```
+Any of these commands may ask you for credentials such as username and password. Enter your access code when prompted for the password. You may consider [managing credentials in git](https://git-scm.com/docs/gitcredentials).
+
 
 ### Git with ssh protocol
 
@@ -136,5 +167,7 @@ git fetch
 git pull
 git push
 ```
+Any of these commands my ask you for credentials to unlock the ssh public key.
+
 Again, we recommend to keep the reverse tunnel open as briefly as possible.