docs: Update showcase.md (#1176)

Max

2024-05-29 a99e854d1e932f0d3f1f3e8b59e86f7b99c63086

 quartz/plugins/transformers/description.ts

@@ -61,6 +61,7 @@
                const currentSentence = sentence.endsWith(".") ? sentence : sentence + "."
                finalDesc.push(currentSentence)
                currentDescriptionLength += currentSentence.length
                sentenceIdx++
              }
            }