Truncate blog posts

See https://docusaurus.io/blog/releases/3.5#blog-consistency-options for more details. If people from Meta say it's good, then I'm pretty sure they are.

blog/2023-12-11-docusaurus.md

@@ -9,6 +9,8 @@ We have a new website! Most importantly, this website is the home of our documen
 
 After careful consideration, we realized that our original website had become overly intricate to maintain due to its numerous customizations and dependencies. Writing comprehensive documentation is already a challenging and time-consuming task, and we were keen on avoiding additional complexity that could hinder our progress. Additionally, we had a wishlist of new features, including the ability to version our documentation, incorporate a blog page, and provide support for [MDX](https://mdxjs.com/). In pursuit of solutions, we explored various options.
 
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 ![LinguaFrancasaurus](../static/img/blog/lf-and-docusaurus.svg)
 
 Fortunately, we discovered a framework that encompassed all the features we desired: [Docusaurus](https://docusaurus.io/). The adoption of this framework allowed us to streamline our infrastructure significantly. Remarkably, we were able to retain essential functionalities, such as our [Algolia](https://www.algolia.com)-based search bar and Markdown-based documentation pages, which are now more accessible for reading and editing.

blog/2023-12-15-release-lingo.md

@@ -10,6 +10,8 @@ tags: [lingo, lingua franca, packaging, build tool]
 Programming languages like Python, Rust, or JavaScript are popular not only because of particular language features, but also thanks to the quality of the tools and packages they offer access to.
 A good and mature ecosystem includes features such as developer support, mainly through IDEs or LSPs. Lingua Franca already shines in this area with its VSCode integration that offers functionality like code highlighting, error handling, build support, and diagram synthesis. Another important aspect of a modern language's ecosystem concerns package management. Although it is possible to import reactors from files in the local file system, support for packaging in Lingua Franca is still in its infancy.
 
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 The Lingua Franca team is therefore pleased to present **Lingo**, a new package manager and build tool for Lingua Franca. While we still have a long list of features that we want Lingo to have (including the ability to publish packages), you can already do quite a few useful things with it.
 For instance, you can easily set up new Lingua Franca projects with `lingo init --language`, which creates a `Lingo.toml` and a small hello world program under `src/Main.lf`. The `Lingo.toml` specifies a set of apps that are executable LF programs. Apps can be configured with additional build and target properties.