diff --git a/git.md b/git.md
index ecbbf25..57e8632 100644
--- a/git.md
+++ b/git.md
@@ -34,3 +34,33 @@ TODO
- `git diff`
- `git apply diff_file`
- *weird error*: just look it up on stack overflow
+
+### Set Up Your Own Git Server
+
+WIP
+
+on server:
+
+```
+mkdir myrepo
+cd myrepo
+git init --bare
+```
+
+on client you can clone and push with ssh:
+
+```
+git clone ssh://user@serveraddress:/path/to/myrepo
+cd myrepo
+... # do some work
+git commit -m "blablabla"
+git push
+```
+
+you can also make your repo clonnable via HTTP if you have HTTP server (e.g. [Apache](apache.md)) running, just have address `http://myserver/myrepo` point to the repo directory, then you can clone with:
+
+```
+git clone http://myserver/myrepo
+```
+
+IMPORTANT NOTE: for the HTTP clone to work you need to do `git update-server-info` on the server in the repo directory after every repo update! You can do this e.g. with a git hook or [cronjob](cronjob.md).
\ No newline at end of file
diff --git a/regex.md b/regex.md
index a1328c9..cbc6863 100644
--- a/regex.md
+++ b/regex.md
@@ -30,7 +30,7 @@ There exist different standards and de-facto standards for regular expressions,
|`[`*A*`-`*B*`]`| like `[` `]` but specifies a range | everywhere | `[3-5]` matches `3`, `4` and `5` |
| `[^`*S*`]` | matches any char. NOT from set *S* | everywhere | `[^abc]` matches `d`, `e`, `A`, `1` etc. |
|`{`*M*`,`*N*`}`| *M* to *N* repetitions of *expr* |escape (`\{`, `\}`) in basic| `a{2,4}` matches `aa`, `aaa`, `aaaa` |
-|*exp1*`|`*exp2*| *exp1* or *exp2* | escape (`\|`) in basic | `abc|def` matches `abc` or `def` |
+|*e1*|*e2*| *e1* or *e2* | escape in basic |ab|cd match. `ab` or `cd`|
| `\`*n* |backref., *n*th matched group (starts with 1)| extended only | `(..).*\1` matches e.g. `ABcdefAB` |
|`[:alpha:]` | alphabetic, *a* to *z*, *A* to *Z* | Posix (GNU has `[[` `]]` | `[:alpha:]*` matches e.g. `abcDEF` |
|`[:alnum:]` | | same as above | |