Update docs OAM architecture diagram

in addtion some editorial changes were made.

IssueID: OAM-171
Change-Id: Id623786e71f06a98140e2121d7a4b8db0b8d4716
Signed-off-by: demx8as6 <martin.skorupski@highstreet-technologies.com>
diff --git a/.gitignore b/.gitignore
index 45418a7..803ce49 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,6 +22,7 @@
 dependency-reduced-pom.xml
 buildNumber.properties
 .mvn/timing.properties
+*.pyc
 
 */**/bin/
 
@@ -32,12 +33,13 @@
 # Opendaylight yang-tools
 yang-gen-sal/
 
-# Eclipse related
+# IDE (Eclipse, vsCode) related
 .project
 .classpath
 .settings/
 target-ide/
 release.properties
+.vsCode
 
 # data models in scp/oam/modeling
 *.yang