Fix various typos

src/Mod/AddonManager/NetworkManager.py

@@ -174,7 +174,7 @@ if HAVE_QTNETWORK:
         def _setup_proxy(self):
             """Set up the proxy based on user preferences or prompts on command line"""
 
-            # Set up the proxy, if necesssary:
+            # Set up the proxy, if necessary:
             if HAVE_FREECAD:
                 (
                     noProxyCheck,

src/Mod/PartDesign/App/ShapeBinder.cpp

@@ -891,7 +891,7 @@ void SubShapeBinder::checkPropertyStatus() {
 
     // Make Shape transient can reduce some file size, and maybe reduce file
     // loading time as well. But there maybe complication arise when doing
-    // TopoShape version upgrade. So we DO NOT set trasient at the moment.
+    // TopoShape version upgrade. So we DO NOT set transient at the moment.
     //
     // Shape.setStatus(App::Property::Transient, !PartialLoad.getValue() && BindMode.getValue()==0);
 }

src/Mod/TechDraw/Gui/QGIRichAnno.cpp

@@ -243,7 +243,7 @@ QString QGIRichAnno::convertTextSizes(const QString& inHtml)  const
     QStringList findList;
     QStringList replList;
 
-    // find each occurence of "font-size:..." and calculate the equivalent size in scene units
+    // find each occurrence of "font-size:..." and calculate the equivalent size in scene units
     // or CSS pixels
     int pos = 0;
     while ((pos = inHtml.indexOf(rxFontSize, pos, &match)) != -1) {

src/Mod/TechDraw/Gui/TaskRichAnno.cpp

@@ -310,7 +310,7 @@ void TaskRichAnno::createAnnoFeature()
             m_annoFeat->X.setValue(Rez::appX(vTemp.x));
             m_annoFeat->Y.setValue(Rez::appX(vTemp.y));
         } else {
-            //if we don't have a base featrue, we can't calculate start position, so just put it mid-page
+            //if we don't have a base feature, we can't calculate start position, so just put it mid-page
             m_annoFeat->X.setValue(m_basePage->getPageWidth()/2.0);
             m_annoFeat->Y.setValue(m_basePage->getPageHeight()/2.0);
         }