Fix libindy versions in GSG.

Signed-off-by: Sergey Minaev <[email protected]>

Author: jovfer

doc/getting-started/getting-started.dockerfile

@@ -20,13 +20,13 @@ RUN pip3 install -U \
 	pip \
 	setuptools \
 	jupyter \
-	python3-indy==1.4.0-dev-586
+	python3-indy==1.5.0
 
 RUN apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 68DB5E88 \
-    && add-apt-repository "deb https://repo.sovrin.org/sdk/deb xenial master" \
+    && add-apt-repository "deb https://repo.sovrin.org/sdk/deb xenial stable" \
     && apt-get update \
     && apt-get install -y \
-    libindy
+    libindy=1.5.0
 
 USER indy