Merge im, teamchat and video-voice into real-time-communication

Resolves: #1078

Closes: #746

pages/software/im.html

@@ -1,8 +0,0 @@
----
-layout: page
-permalink: /software/im/
-title: "Instant Messaging"
-description: "Discover secure and private ways to message others online without letting any third parties read your messages."
----
-
-{% include sections/instant-messenger.html %}

pages/software/real-time-communication.html

@@ -0,0 +1,16 @@
+---
+layout: page
+permalink: /software/real-time-communication/
+redirect_from:
+  - /software/im/
+  - /software/voip/
+  - /software/teamchat/
+title: "Real time communication"
+Discover secure and private ways to communicate with others online without letting any third parties read your messages.
+---
+
+{% include sections/instant-messenger.html %}
+
+{% include sections/voice-video-messenger.html %}
+
+{% include sections/teamchat.html %}

pages/software/teamchat.html

@@ -1,8 +0,0 @@
----
-layout: page
-permalink: /software/teamchat/
-title: "Team chat"
-description: "Discover secure and private ways to communicate with your team online without letting any third parties read your messages."
----
-
-{% include sections/teamchat.html %}

pages/software/video-voice.html

@@ -1,8 +0,0 @@
----
-layout: page
-permalink: /software/voip/
-title: "VoIP"
-description: "Find a voice and video messenger that supports completely End-to-End encrypted calls."
----
-
-{% include sections/voice-video-messenger.html %}