Fix formatting in documentation

Removed trailing whitespaces and extra newlines. Added some missing
punctuation. Replaced unicode characters that aren't commonly used
with the more common character.

The replaced unicode characters are
- ’ (U+2019) to ' (U+0027)
- “ (U+201C) to " (U+0022)
- ” (U+201D) to " (U+0022)

docs/development-guides.md

@@ -1,6 +1,6 @@
 # Development Guides
 
-A series of short tutorials, to guide you through the most common development tasks. 
+A series of short tutorials, to guide you through the most common development tasks.
 
 Sections:
 - [Creating a new theme](#creating-a-new-theme)
@@ -18,10 +18,10 @@ Sections:
 Adding a new theme is really easy.  There's two things you need to do: Pass the theme name to Dashy, so that it can be added to the theme selector dropdown menu, and then write some styles!
 
 ##### 1. Add Theme Name
-Choose a snappy name for you're theme, and add it to the `builtInThemes` array inside [`defaults.js`](https://github.com/Lissy93/dashy/blob/master/src/utils/defaults.js#L27). 
+Choose a snappy name for you're theme, and add it to the `builtInThemes` array inside [`defaults.js`](https://github.com/Lissy93/dashy/blob/master/src/utils/defaults.js#L27).
 
 ##### 2. Write some Styles!
-Put your theme's styles inside [`color-themes.scss`](https://github.com/Lissy93/dashy/blob/master/src/styles/color-themes.scss). 
+Put your theme's styles inside [`color-themes.scss`](https://github.com/Lissy93/dashy/blob/master/src/styles/color-themes.scss).
 Create a new block, and make sure that `data-theme` matches the theme name you chose above. For example:
 
 ```css
@@ -91,7 +91,7 @@ export const languages = [
 ```
 You can also add your new language to the readme, under the [Language Switching](https://github.com/Lissy93/dashy#language-switching-) section, and optionally include your name/ username if you'd like to be credited for your work. Done!
 
-If you are not comfortable with making pull requests, or do not want to modify the code, then feel free to instead send the translated file to me, and I can add it into the application. I will be sure to credit you appropriately. 
+If you are not comfortable with making pull requests, or do not want to modify the code, then feel free to instead send the translated file to me, and I can add it into the application. I will be sure to credit you appropriately.
 
 # Adding a new option in the config file
 
@@ -144,7 +144,7 @@ or
 Finally, add your new property to the [`configuring.md`](./configuring.md) API docs. Put it under the relevant section, and be sure to include field name, data type, a description and mention that it is optional.  If your new feature needs more explaining, then you can also document it under the relevant section elsewhere in the documentation.
 
 Checklist:
-- [ ] Ensure the new attribute is actually necessary, and nothing similar already exists 
+- [ ] Ensure the new attribute is actually necessary, and nothing similar already exists
 - [ ] Update the [Schema](https://github.com/Lissy93/dashy/blob/master/src/utils/ConfigSchema.js) with the parameters for your new option
 - [ ] If required, set a default or fallback value (usually in [`defaults.js`](https://github.com/Lissy93/dashy/blob/master/src/utils/defaults.js))
 - [ ] Document the new value in [`configuring.md`](./configuring.md), and if required under the relevant section in the docs
@@ -219,7 +219,7 @@ export default {
   },
 };
 ```
-  
+
 Finally, in the markup of your component, just add a `v-if` statement, referencing your computed value
 ```vue
 <header v-if="isVisible">