wikiman: add page

pages/common/wikiman.md

@@ -0,0 +1,21 @@
+# wikiman
+
+> Wikiman is an offline search engine for manual pages, Arch Wiki, Gentoo Wiki and other documentation.
+> More information: <https://github.com/filiparag/wikiman>.
+
+
+- Search for a specific topic on all install sources:
+
+`wikiman {{search_term}}`
+
+- Search for a topic on a specific [s]ource:
+
+`wikiman -s {{source}} {{search_term}}`
+
+- Search for a topic on two specific [s]ources:
+
+`wikiman` -s {{source1}},{{source2}} {{search_term}}`
+
+- List existing [S]ources:
+
+`wikiman -S`