updates

README.md

@@ -131,6 +131,22 @@ bash <(curl -s komrade.app/run)
 
 Then hit enter. [That](https://github.com/Komrade/Komrade/blob/master/script/micro_installer) grabs a shortcut to [this auto-installer script](https://github.com/Komrade/Komrade/blob/master/script/install). It will install Komrade in a virtual Python environment into a folder of your choosing, although it may only work at the moment if you let it use the default of ```~/komrade.```
 
+**Update**: For now, you'll need to install Themis, the cryptography library, manually. This will need to be made more convenient for the future, but for now, you can either follow [these official instructions](https://docs.cossacklabs.com/themis/installation/installation-from-packages/), or in a nutshell:
+
+* Linux/Ubuntu: 
+``` 
+echo "deb https://pkgs-ce.cossacklabs.com/stable/ubuntu bionic main" | sudo tee /etc/apt/sources.list.d/cossacklabs.list
+sudo apt update
+sudo apt install libthemis-dev
+```
+* Mac:
+```
+brew tap cossacklabs/tap
+brew install libthemis
+```
+* Windows: follow instructions [here](https://docs.cossacklabs.com/themis/installation/installation-from-packages/#building-in-msys2)
+
+
 ### Run
 
 Install as above.