Add license

Author: Robinlovelace

.Rbuildignore

@@ -6,3 +6,4 @@
 ^.*\.Rproj$
 ^\.Rproj\.user$
 ^README\.Rmd$
+^LICENSE\.md$

DESCRIPTION

@@ -5,8 +5,7 @@ Authors@R:
     person("First", "Last", , "[email protected]", role = c("aut", "cre"),
            comment = c(ORCID = "YOUR-ORCID-ID"))
 Description: What the package does (one paragraph).
-License: `use_mit_license()`, `use_gpl3_license()` or friends to pick a
-    license
+License: AGPL (>= 3)
 Encoding: UTF-8
 Roxygen: list(markdown = TRUE)
 RoxygenNote: 7.1.2