diff --git a/README.md b/README.md
index 1cbbaad..731c902 100644
--- a/README.md
+++ b/README.md
@@ -106,27 +106,27 @@ To build the book with the default language (here: 'en'), change
 into the root directory of the element-call submodule and type:
 
 ```console
-$ mdbook build --dest-dir book/en
+$ mdbook build --dest-dir book_en
 ```
 
 The rendered HTML output will be placed underneath the
-`book/en` subdirectory. To check it out, open it in your web
+`book_en` subdirectory. To check it out, open it in your web
 browser.
 
 _Firefox:_
 ```console
-$ firefox book/en/html/index.html                       # Linux
-$ open -a "Firefox" book/en/html/index.html             # OS X
-$ Start-Process "firefox.exe" .\book\en\html\index.html # Windows (PowerShell)
-$ start firefox.exe .\book\en\html\index.html           # Windows (Cmd)
+$ firefox book_en/html/index.html                       # Linux
+$ open -a "Firefox" book_en/html/index.html             # OS X
+$ Start-Process "firefox.exe" .\book_en\html\index.html # Windows (PowerShell)
+$ start firefox.exe .\book_en\html\index.html           # Windows (Cmd)
 ```
 
 _Chrome:_
 ```console
-$ google-chrome book/en/html/index.html                 # Linux
-$ open -a "Google Chrome" book/en/html/index.html       # OS X
-$ Start-Process "chrome.exe" .\book\en\html\index.html  # Windows (PowerShell)
-$ start chrome.exe .\book\en\html\index.html            # Windows (Cmd)
+$ google-chrome book_en/html/index.html                 # Linux
+$ open -a "Google Chrome" book_en/html/index.html       # OS X
+$ Start-Process "chrome.exe" .\book_en\html\index.html  # Windows (PowerShell)
+$ start chrome.exe .\book_en\html\index.html            # Windows (Cmd)
 ```
 
 Executing `mdbook serve` will have **mdbook** act has a web service
@@ -141,6 +141,7 @@ $ mdbook test
 <!--
 ##### Building a language variant of the book
 
+WIP: adapt to mdbook-i18n-helpers
 Translated version of the book will be placed inside the code tree
 in the subdirectory `src/<language id`.
 
@@ -148,12 +149,12 @@ E.g. if you like to render the german version (language id: 'de'), change
 into Element-Call books root directory and type:
 
 ```console
-$ MDBOOK_BOOK__src=src/de mdbook build --dest-dir book/de --open
+$ MDBOOK_BOOK__src=src_de mdbook build --dest-dir book_de --open
 ```
 
 The rendered HTML output will be placed underneath the
-`book/de` subdirectory. Since we appended the `--open` parameter, your default browser should be fired up and ... tada!
-!-->
+`book_de` subdirectory. Since we appended the `--open` parameter, your default browser should be fired up and ... tada!
+-->
 
 #### 🛠️ Development
 ==================
diff --git a/src/lib.rs b/src/lib.rs
index 260fe27..d53be60 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -116,18 +116,42 @@
 //!
 //! _Firefox:_
 //! ```console
+<<<<<<< HEAD
 //! $ firefox book/en/html/index.html                       # Linux
 //! $ open -a "Firefox" book_en/html/index.html             # OS X
 //! $ Start-Process "firefox.exe" .\book_en\html\index.html # Windows (PowerShell)
 //! $ start firefox.exe .\book_en\html\index.html           # Windows (Cmd)
+||||||| 1d3c838a
+//! $ firefox book/en/html/index.html                       # Linux
+//! $ open -a "Firefox" book/en/html/index.html             # OS X
+//! $ Start-Process "firefox.exe" .\book\en\html\index.html # Windows (PowerShell)
+//! $ start firefox.exe .\book\en\html\index.html           # Windows (Cmd)
+=======
+//! $ firefox book_en/html/index.html                       # Linux
+//! $ open -a "Firefox" book_en/html/index.html             # OS X
+//! $ Start-Process "firefox.exe" .\book_en\html\index.html # Windows (PowerShell)
+//! $ start firefox.exe .\book_en\html\index.html           # Windows (Cmd)
+>>>>>>> next
 //! ```
 //!
 //! _Chrome:_
 //! ```console
+<<<<<<< HEAD
 //! $ google-chrome book/en/html/index.html                 # Linux
 //! $ open -a "Google Chrome" book_en/html/index.html       # OS X
 //! $ Start-Process "chrome.exe" .\book_en\html\index.html  # Windows (PowerShell)
 //! $ start chrome.exe .\book_en\html\index.html            # Windows (Cmd)
+||||||| 1d3c838a
+//! $ google-chrome book/en/html/index.html                 # Linux
+//! $ open -a "Google Chrome" book/en/html/index.html       # OS X
+//! $ Start-Process "chrome.exe" .\book\en\html\index.html  # Windows (PowerShell)
+//! $ start chrome.exe .\book\en\html\index.html            # Windows (Cmd)
+=======
+//! $ google-chrome book_en/html/index.html                 # Linux
+//! $ open -a "Google Chrome" book_en/html/index.html       # OS X
+//! $ Start-Process "chrome.exe" .\book_en\html\index.html  # Windows (PowerShell)
+//! $ start chrome.exe .\book_en\html\index.html            # Windows (Cmd)
+>>>>>>> next
 //! ```
 //!
 //! Executing `mdbook serve` will have **mdbook** act has a web service