fixing typos

lcDetectorRnD.tex

@@ -249,21 +249,22 @@ \section*{Introduction}
 
 Over the past few decades, a large number of groups have pursued extensive generic
 detector R\&D studies, summarized in this report, applicable to any of the proposed Linear
-Collider detector concepts (International Large Detector (ILD), Silicon Detector (SiD) and
+Collider detector concepts: International Large Detector (ILD), Silicon Detector (SiD) and
 CLIC Detector and Physics (CLICdp). Intentionally, these groups did not yet make very
 specific choices and keep various options for technologies to realise the individual sub-
 detectors. This has the advantage that the technologies can be further developed until
-specific choices have to made, once the project is approved. Furthermore---and as important---this
+specific choices have to be made, once the project is approved. Furthermore---and as important---this
 keeps a broad community of detector research groups at universities and laboratories
 involved and increases the chance to arrive at the best technically possible detector solution
 when it has to be built. Wherever possible, the R\&D is not pursued with respect to one
-specific concept but in the context of world-wide transversal R\&D collaborations which work
+specific concept but in the context of worldwide transversal R\&D collaborations which work
 on technologies rather than detector designs, such as CALICE, LCTPC, and FCAL. Further
-R\&D programs are ongoing, e.g.\ for various monolithic pixel detector technologies
+R\&D programs are ongoing, e.g.\ for various pixel detector technologies
 (CMOS, DEPFET, FPCCD, SoI), for generic aspects of the next generation silicon vertex
 detectors for Linear Colliders and for the development of forward calorimetry. Last, but not
 least, European Commission-funded programs, such as EUDET, AIDA/AIDA2020 and
 ATTRACT play an important role in enabling and supporting generic R\&D activities.
+
 This report provides an overview of the past and presently ongoing Linear Collider
 detector R\&D studies, including those not directly included in the ILD, SiD and CLICdp
 concept groups today, but which might become relevant in the future. The main purpose of