make scripts executable, running them with sh does something weird on travis

README.md

@@ -35,14 +35,14 @@ puppeteer.launch({headless: false});
 
 ### Setup
 
-Run `sh install.sh`. This will:
+Run `./install.sh`. This will:
  - install synapse, fetches the master branch at the moment. If anything fails here, please refer to the synapse README to see if you're missing one of the prerequisites.
  - install riot, this fetches the master branch at the moment.
  - install dependencies (will download copy of chrome)
 
 ### Run tests
  
-Run tests with `sh run.sh`.
+Run tests with `./run.sh`.
 
 Developer Guide
 ===============

install.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
 # run with PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=true sh install.sh if chrome is already installed
-sh synapse/install.sh
+./synapse/install.sh
-sh riot/install.sh
+./riot/install.sh
 npm install

run.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
-sh synapse/start.sh
+./synapse/start.sh
-sh riot/start.sh
+./riot/start.sh
 node start.js
-sh riot/stop.sh
+./riot/stop.sh
-sh synapse/stop.sh
+./synapse/stop.sh