Move pages under tldr, lint run.sh, update docs

tldr/pdfseparate

@@ -0,0 +1,21 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# pdfseparate
+
+> Portable Document Format (PDF) file page extractor.
+> More information: <https://manpages.debian.org/latest/poppler-utils/pdfseparate.1.en.html>.
+
+- Extract pages from PDF file and make a separate PDF file for each page:
+
+`pdfseparate {{path/to/source_filename.pdf}} {{path/to/destination_filename-%d.pdf}}`
+
+- Specify the first/start page for extraction:
+
+`pdfseparate -f {{3}} {{path/to/source_filename.pdf}} {{path/to/destination_filename-%d.pdf}}`
+
+- Specify the last page for extraction:
+
+`pdfseparate -l {{10}} {{path/to/source_filename.pdf}} {{path/to/destination_filename-%d.pdf}}`