resizing images for better performance

Gemfile.lock

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+GEM
+  remote: https://rubygems.org/
+  specs:
+    faraday (0.9.1)
+      multipart-post (>= 1.2, < 3)
+    ffi (1.9.10)
+    jekyll-watch (1.3.1)
+      listen (~> 3.0)
+    kramdown (1.10.0)
+    listen (3.0.6)
+      rb-fsevent (>= 0.9.3)
+      rb-inotify (>= 0.9.7)
+    mini_magick (4.5.1)
+    multipart-post (2.0.0)
+    rb-fsevent (0.9.7)
+    rb-inotify (0.9.7)
+      ffi (>= 0.5.0)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  faraday
+  jekyll-watch
+  kramdown
+  mini_magick
+
+BUNDLED WITH
+   1.10.6