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

tldr/windows/findstr

@@ -0,0 +1,41 @@
+---
+syntax: markdown
+tags: [tldr, windows]
+source: https://github.com/tldr-pages/tldr.git
+---
+# findstr
+
+> Find specified text within one or more files.
+> More information: <https://learn.microsoft.com/windows-server/administration/windows-commands/findstr>.
+
+- Find one or more strings in all files:
+
+`findstr "{{string1 string2 ...}}" *`
+
+- Find one or more strings in a piped command's output:
+
+`{{dir}} | findstr "{{string1 string2 ...}}"`
+
+- Find one or more strings in all files recur[s]ively:
+
+`findstr /s "{{string1 string2 ...}}" *`
+
+- Find strings using a case-insensitive search:
+
+`findstr /i "{{string1 string2 ...}}" *"`
+
+- Find strings in all files using regular expressions:
+
+`findstr /r "{{expression}}" *`
+
+- Find a literal string (containing spaces) in all text files:
+
+`findstr /c:"{{string1 string2 ...}}" *.txt`
+
+- Display the line number before each matching line:
+
+`findstr /n "{{string1 string2 ...}}" *`
+
+- Display only the filenames that contain a match:
+
+`findstr /m "{{string1 string2 ...}}" *`