readme update

README.md

@@ -5,10 +5,15 @@ This is just fork from github repository. Forked in order to recompile with new
 
 Whenever you have problem with compability you can download source package from [Mupdf source](https://mupdf.com/downloads/archive/mupdf-1.23.0-source.tar.gz) after simply run ``` make``` to compile on your platform. When this is completed just simply copy following files:
 
-- ```libmupdf.a```  ==> ```libs/libmupdfthird_linux_amd64.a```
+- ``` libmupdf.a```  ==> ```libs/libmupdfthird_linux_amd64.a```
 - ```libmupdf-third.a```  ==> ```libs/libmupdf_linux_amd64.a```
 
 Part of file name 'linux_amd64' maens OS and platform. 
+
+### Musl Compilation
+To compile for linux musl you can use docker and just simply run following command from CLI
+- ```docker run --rm -v ./:/mupdf -it alpine:latest sh -c "apk update; apk add alpine-sdk; cd /mupdf;apk add freeglut-dev libxrandr-dev; make clean ;make; chown -R 1000:1000 ./build; mkdir ./musl; cp ./build/release/libmupdf.a ./musl/libmupdf_linux_amd64_musl.a; cp ./build/release/libmupdf-third.a ./musl/libmupdfthird_linux_amd64_musl.a"``` 
+
 ##### Notice that you need to compile MuPdf source for OS and platform you want to use
 
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