diff --git a/README.md b/README.md
index 0b72563..fd1ef98 100644
--- a/README.md
+++ b/README.md
@@ -26,9 +26,9 @@ Unless otherwise noted, the patches were created by Anna Christina Naß and are
 
 The escape key is `^Y`, so to get help, just press `^Y` and `?` in sequence.
 
-# The patches and binaries
+## The patches and binaries
 
-## SIO/2 patch
+### SIO/2 patch
 
 This patch allows the use of QTERM on a RC2014 using a SIO/2 serial port.
 
@@ -37,12 +37,12 @@ At the moment, the patches provided here are tested on a RC2014 running RomWBW a
 The patch ```QT-RC82.Z``` uses the second serial port of the first SIO/2 port (base address 0x82) while ```QT-RC84.Z``` uses the first serial port of a second SIO/2 (0x84).
 
 Direct download of binary:
-* [QTERM82.COM](QTERM82.COM)
-* [QTERM84.COM](QTERM84.COM)
+* [QTERM82.COM](qterm82.com)
+* [QTERM84.COM](qterm84.com)
 
 The patch calls a RomWBW HBIOS routine to reset the SIO/2 after exiting, so I don't know what happens when using it without RomWBW.
 
-## CP/M 3 patch
+### CP/M 3 patch
 
 This patch uses CP/M 3 BDOS calls to send and receive data from the serial port, so it is independant of the hardware as long as the BIOS provides an interface for CP/M.
 
@@ -53,19 +53,19 @@ In a standard RomWBW system, the second serial port is mapped automatically to `
 This makes using QTERM on an SC126 (Z180 ASCI serial port) possible, but also works on an RC2014 with a SIO/2 port.
 
 Direct download:
-* [QTERMC3.COM](QTERMC3.COM)
+* [QTERMC3.COM](qtermc3.com)
 
 The patch file is ```QT-CPM3.Z```.
 
-# Technical details
+## Technical details
 
-## Files
+### Files
 
-The file [QTERM43F.LBR](QTERM43F.LBR) is the original QTerm distribution file.
+The file [QTERM43F.LBR](qterm43f.lbr) is the original QTerm distribution file.
 
 The directory [files/](files/) contains all files from the .LBR file. There, the documentation for QTerm, [QTERM.DOC](files/QTERM.DOC) can be found.
 
-## Applying a patch
+### Applying a patch
 
 The patches are applied using ```ZSM``` and ```ZPATCH```, which are included in the QTerm distribution (```QTERM43F.LBR```).
 
@@ -79,7 +79,7 @@ This creates QT-xxxx.O, which then has to be applied to the .COM file:
 
 Now QTERM43F.COM has the patch applied and should be ready to use.
 
-## Details for the SIO/2 patch
+### Details for the SIO/2 patch
 
 When started, the patch initializes the serial port and it should "just work".