update puppeteer dependencies

docs/en/for-developers/installing-bhima.md

@@ -63,7 +63,7 @@ sudo apt-get install ca-certificates fonts-liberation gconf-service \
   libgdk-pixbuf2.0-0 libglib2.0-0 libgtk-3-0 libnspr4 libnss3 libpango-1.0-0 \
   libpangocairo-1.0-0 libstdc++6 libx11-6 libx11-xcb1 libxcb1 libxcomposite1 \
   libxcursor1 libxdamage1 libxext6 libxfixes3 libxi6 libxrandr2 libxrender1 \
-  libxss1 libxtst6 lsb-release wget -y
+  libxss1 libxtst6 lsb-release libxshmfence1 wget -y
 ```
 
 For more information on other operating systems, [see the puppeteer troubleshooting documentation](https://github.com/puppeteer/puppeteer/blob/master/docs/troubleshooting.md#chrome-headless-doesnt-launch-on-unix).