Add git ssh notes

Readme.md

@@ -24,6 +24,9 @@ choco feature enable -n allowGlobalConfirmation
 choco install firefox git
 ```
 * Get Daimler certificate authority (CA) from stash.detss.corpintra.net (export certificate chain in pem format)
+``` 
+files\ca-certificates-plus-stash.crt
+```
 * Configure git to use the Daimler CA
 ```
 git config --global http.sslCAInfo C:\documents\stash.pem

doc/GIT_stash.md

+# Git Bash and stash in Windows
+https://confluence.detss.corpintra.net/display/SYSTEMS/GIT+Server+Authentication
+
+## Clone with SSH
+* Environment variable `GIT_SSH` temporary
+    ```` 
+    export GIT_SSH=/c/ProgramData/chocolatey/bin/plink.exe
+    ````
+* Configure environment variable permanently
+    ````
+    C:\ProgramData\chocolatey\bin\plink.exe 
+    ````
+* Start putty once and call known address to add host key
+  * Server: `stash.detss.corpintra.net`
+  * Port: 7999
+
+## Clone with HTTP
+
+* Copy trusted certificates
+```` 
+cp files\ca-certificates-plus-stash.crt C:\documents\certificates\ca-certificates-plus-stash.pem
+````
+* Use custom trusted certificates chain 
+```
+git config --global http.sslCAInfo C:\documents\certificates\ca-certificates-plus-stash.pem
+git config http.proxy http://127.0.0.1:3128
+git config https.proxy http://127.0.0.1:3128
+```

windows/packages/desktop.config

@@ -5,6 +5,8 @@
   <package id="atom" />
   <package id="7zip" />
   <package id="git" packageParameters="'/GitAndUnixToolsOnPath /NoAutoCrlf'"/>
+  <package id="putty" />
+
   <package id="airtame" />
   <package id="sdcard-formatter" />
   <package id="PartitionMasterFree" />