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

tldr/gnatmake

@@ -0,0 +1,21 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# gnatmake
+
+> A low-level build tool for Ada programs (part of the GNAT toolchain).
+> More information: <https://gcc.gnu.org/onlinedocs/gnat_ugn/Building-with-gnatmake.html>.
+
+- Compile an executable:
+
+`gnatmake {{source_file1.adb source_file2.adb ...}}`
+
+- Set a custom executable name:
+
+`gnatmake -o {{executable_name}} {{source_file.adb}}`
+
+- [f]orce recompilation:
+
+`gnatmake -f {{source_file.adb}}`