[gnome-system-monitor] Fix minor typos

[Robert Roth <robertroth src gnome org>]

commit edab1ce546a8c9ccd8c91ad0c065740af7b3c12d
Author: Yuri Chornoivan <yurchor ukr net>
Date:   Tue Apr 28 15:06:04 2020 +0300

    Fix minor typos

 help/C/memory-map-use.page | 2 +-
 src/disks.cpp              | 2 +-
 src/interface.cpp          | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/help/C/memory-map-use.page b/help/C/memory-map-use.page
index 0852e8d9..b2f03e48 100644
--- a/help/C/memory-map-use.page
+++ b/help/C/memory-map-use.page
@@ -60,7 +60,7 @@
 
   <list>
     <item>
-      <p>Addresses are diplayed in hexadecimal (base 16).</p>
+      <p>Addresses are displayed in hexadecimal (base 16).</p>
     </item>
     <item>
       <p>Sizes are displayed in <link xref="units">IEC binary
diff --git a/src/disks.cpp b/src/disks.cpp
index c9031742..fe6c7e10 100644
--- a/src/disks.cpp
+++ b/src/disks.cpp
@@ -23,7 +23,7 @@ enum DiskColumns
     DISK_AVAIL,
     /* USED has to be the last column */
     DISK_USED,
-    // then unvisible columns
+    // then invisible columns
     /* PixBuf column */
     DISK_ICON,
     /* numeric columns */
diff --git a/src/interface.cpp b/src/interface.cpp
index eb4efadf..39b77d26 100644
--- a/src/interface.cpp
+++ b/src/interface.cpp
@@ -113,7 +113,7 @@ cb_cpu_color_changed (GsmColorButton *cp, gpointer data)
     GVariant *cpu_colors_var = g_settings_get_value (settings->gobj(), GSM_SETTING_CPU_COLORS);
     gsize children_n = g_variant_n_children(cpu_colors_var);
 
-    /* Create builder to contruct new setting with updated value for cpu i */
+    /* Create builder to construct new setting with updated value for cpu i */
     GVariantBuilder builder;
     g_variant_builder_init(&builder, G_VARIANT_TYPE_ARRAY);