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

tldr/paste

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# paste
+
+> Merge lines of files.
+> More information: <https://www.gnu.org/software/coreutils/paste>.
+
+- Join all the lines into a single line, using TAB as delimiter:
+
+`paste -s {{path/to/file}}`
+
+- Join all the lines into a single line, using the specified delimiter:
+
+`paste -s -d {{delimiter}} {{path/to/file}}`
+
+- Merge two files side by side, each in its column, using TAB as delimiter:
+
+`paste {{file1}} {{file2}}`
+
+- Merge two files side by side, each in its column, using the specified delimiter:
+
+`paste -d {{delimiter}} {{file1}} {{file2}}`
+
+- Merge two files, with lines added alternatively:
+
+`paste -d '
+' {{file1}} {{file2}}`