switched site and content posts to opengraph internal template

content/post/aperture-study.md

@@ -4,7 +4,8 @@ date: 2019-01-16
 lastmod: 2019-02-11
 categories: ["Blog"]
 tags: ["photography"]
-preview: "/static/img/aperture-study/f17-f40-comp.jpg"
+images:
+  - "/static/img/aperture-study/f17-f40-comp.jpg"
 ---
 I found out recently that using the maximum aperture for a lens can have
 deminishing returns. Simply put: it makes the image look "soft", or otherwise

content/post/emacs_clang_libopencm3.md

@@ -6,7 +6,8 @@ tags: ["emacs", "linux"]
 categories: ["Tutorial"]
 contentCopyright: true
 hideHeaderAndFooter: false
-preview: "/static/img/emacs-clang-libopencm3/header-completion.png"
+images:
+  - "/static/img/emacs-clang-libopencm3/header-completion.png"
 ---
 With some minor dependencies, it's fairly straightforward in setting up your
 Emacs workflow to include IntelliSense-like auto-completion!

content/post/headphone-fix.md

@@ -4,7 +4,8 @@ date: 2018-01-11
 lastmod: 2019-01-16
 categories: ["Blog"]
 tags: ["electronics"]
-preview: "/static/img/headphone-fix/IMG_7505.jpg"
+images:
+  - "/static/img/headphone-fix/IMG_7505.jpg"
 ---
 A colleague offered a pair of Bern Bluetooth drop-in headphones to me fore free,
 with the catch being: _I had to fix them_

content/post/lineageos_pixel3a.md

@@ -7,7 +7,8 @@ tags: ["android", "security", "hacking"]
 categories: ["Tutorial"]
 contentCopyright: true
 hideHeaderAndFooter: false
-preview: "/static/img/lineageos-pixel3a/lineage-settings.png"
+images:
+  - "/static/img/lineageos-pixel3a/lineage-settings.png"
 ---
 In this post I aim to highlight my findings in deciding to go through  the
 process of installing LineageOS on my Pixel 3a. Currently, LineageOS does not

content/post/stm32-part0.md

@@ -6,7 +6,8 @@ tags: ["libopencm3", "stm32", "tutorial"]
 categories: ["Tutorial"]
 contentCopyright: true
 hideHeaderAndFooter: false
-preview: "/static/img/stm32-examples/part0/stm32-basic-gpio-leds.jpeg"
+images:
+  - "/static/img/stm32-examples/part0/stm32-basic-gpio-leds.jpeg"
 ---
 One of the simplest projects to get started with the STM32 microcontroller
 series: turn on the lights!

content/post/stm32-part1.md

@@ -6,7 +6,8 @@ tags: ["libopencm3", "stm32", "tutorial"]
 categories: ["Tutorial"]
 contentCopyright: true
 hideHeaderAndFooter: false
-preview: "/static/img/stm32-examples/part1/blinky.gif"
+images:
+  - "/static/img/stm32-examples/part1/blinky.gif"
 ---
 After having reviewed [**Part 0**](/post/stm32-part0) of this series, we can now
 explore controlling GPIO with the hardware timers! Other tutorials have used the

content/post/thinkpad_usb_fix.md

@@ -4,7 +4,8 @@ date: 2019-02-28
 lastmod: 2019-02-28
 categories: ["Blog"]
 tags: ["electronics"]
-preview: "/static/img/thinkpad-usb-fix/DSC04781.jpg"
+images:
+  - "/static/img/thinkpad-usb-fix/DSC04781.jpg"
 ---
 From the moment that I first had my (_used_) ThinkPad X220, the bottom-right USB
 port nearest to the SD card reader had been broken. The pad (_or bolster_) was