Add Japanese common expressions page.

src/Pages/Japan/Japanese/en/expressions.md

@@ -0,0 +1,26 @@
+## Expressions
+
+Notes on some common expressions in Japanese.
+
+![Japanese expressions](/images/japanese-images/irasutoya/school-sansyamendan)  
+
+---
+
+* どうぞおかけください。
+* Please take a seat.
+
+* おじゃまします。
+* Said by a visitor entering a house.
+* The reply is usually: どうぞ
+
+* どうぞお<Furigana kanji="入" kana="はい"/>りください。
+* Please come in (to our house).
+
+* おいとまします。
+* I am leaving (your house).
+
+---
+
+**Image source:**
+
+* [irasutoya.com](https://www.irasutoya.com/)

src/Pages/Japan/en/main.md

@@ -10,6 +10,8 @@ The country of Japan and the Japanese language has facinated me for many years n
 These pages contain my notes on learning the language.
 
 * [Cheat sheet](./japanese/cheat-sheet)
+* [Expressions](./japanese/expressions)
+
 * [ために、ように、のに](./japanese/tameni-youni-noni)
 * [と、たら、ば、なら](./japanese/if-when)
 * [けど、けれど、けれども、のに](./japanese/but)

src/Routers.js

@@ -9,7 +9,7 @@ import ElmPage from './Pages/Software/elm/ElmPage';
 
 // Japan
 export const japaneseRoutes = languages.map(lang => {
-    const pages = ['but', 'cheat-sheet', 'contrast-particle', 'dake-vs-shika', 'if-when', 'particles', 'tameni-youni-noni', 'te-oku', 'toka-tari-shi', 'verbs'];
+    const pages = ['but', 'cheat-sheet', 'contrast-particle', 'dake-vs-shika', 'expressions', 'if-when', 'particles', 'tameni-youni-noni', 'te-oku', 'toka-tari-shi', 'verbs'];
     return pages.map(page => {
       const path = `/${lang}/japan/japanese/${page}`;
       const mdPath = `Japan/Japanese/${lang}/${page}.md`;