Update README.md

**Team Win Recovery Project (TWRP)**

You can find a compiling guide [here](http://forum.xda-developers.com/showthread.php?t=1943625 "Guide").

## Current build instructions:

    #####################################################

    ### Instructions to build TWRP from a "minimal" LineageOS manifest

    ## Following

    https://www.youtube.com/playlist?list=PLRJ9-cX1yE1kzxSkdZSG_h_f-GDNmSmAl

    ### Initially fetch essential build tools:

    # sudo apt-get install openjdk-8-jdk git-core gnupg flex bison gperf build-

    essential zip curl zlib1g-dev gcc-multilib g++-multilib libc6-dev-i386

    lib32ncurses5-dev x11proto-core-dev libx11-dev lib32z-dev libgl1-mesa-dev

    libxml2-utils xsltproc unzip schedtool

    ## Steps from https://github.com/minimal-manifest-twrp/

    platform_manifest_twrp_lineageos :

    ## unfortunately they only have a stripped down lineageos manifest for 14.1:

    repo init --depth=1 -u \

    git://github.com/minimal-manifest-twrp/platform_manifest_twrp_lineageos.git  -b twrp-14.1

    repo sync

    ## Then I currently apply my two patches:

    for commit in \

         2deb078fb269cf6a0b36fcf6770ea04fb5d0a390 \

        a0ba7582739d671c0bcf6d5f9d5b7fc81d185a13

    do

    curl https://gitlab.e.foundation/e/tools/etwrp/commit/"$commit".diff | patch -p1 -d bootable/recovery

    done

    ## Ok, now select target:

    # - Xiaomi Mi5s (capricorn)    LineageOS/android_device_xiaomi_capricorn

    # - LeEco Le2 (s2)                       LineageOS/android_device_leeco_s2

    # - Essential PH1 (mata)          LineageOS/android_device_essential_mata

    ## And build:

    source build/envsetup.sh

    lunch lineage_capricorn-eng

    ## A bit later the build stops, because the vendor files are missing

    ## but at this point the file .repo/local_manifests/roomservice.xml has been

    ## created. We have to add the correct repo, e.g. by appending a line like

    ## this to the manifest:

    sed -i '/<\/manifest>/i \

      <project name="TheMuppets/proprietary_vendor_leeco" path="s2"

      remote="github" />'   .repo/local_manifests/roomservice.xml

    ## Then sync and build again

    repo sync

    lunch lineage_capricorn-eng

    #####################################################

    Still quite a bit shaky.. maybe I should just start building full LineageOS,

    not this stripped down manifest. My current approach is not really ideal

    for eelo-0.2, because the guys that created this "minimal manifest" have

    stopped updating after cm-14.1. And there also has to be a better way to

    adjust the local manifest prior to build, instead of first failing the

    build.

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